Simplify fully closed or fully open check

Bumped version to 20240104.0
Fix thermostat and humidifier card rendering when off (#19281 )
2026-05-16 22:27:20 +00:00 · 2024-01-04 18:32:48 +01:00 · 2024-01-04 17:43:37 +01:00 · 2024-01-04 16:18:16 +01:00 · 2024-01-04 14:24:33 +01:00 · 2024-01-04 13:20:35 +01:00
1557 changed files with 105027 additions and 50382 deletions
@@ -0,0 +1,39 @@
+[modern]
+# Support for dynamic import is the main litmus test for serving modern builds.
+# Although officially a ES2020 feature, browsers implemented it early, so this
+# enables all of ES2017 and some features in ES2018.
+supports es6-module-dynamic-import
+
+# Exclude Safari 11-12 because of a bug in tagged template literals
+# https://bugs.webkit.org/show_bug.cgi?id=190756
+# Note: Dropping version 11 also enables several more ES2018 features
+not Safari < 13
+not iOS < 13
+
+# Exclude KaiOS, QQ, and UC browsers due to lack of sufficient feature support data
+# Babel ignores these automatically, but we need here for Webpack to output ESM with dynamic imports
+not KaiOS > 0
+not QQAndroid > 0
+not UCAndroid > 0
+
+# Exclude unsupported browsers
+not dead
+
+[legacy]
+# Legacy builds are served when modern requirements are not met and support browsers:
+# - released in the last 7 years + current alpha/beta versionss
+# - with global utilization above 0.05%
+# The lattermost query ensures that support for popular old browsers is not dropped too early
+# (e.g. IE 11, Android 4.4, or Samsung 4).
+#
+# In addition, legacy browsers must support some minimum features that cannot be polyfilled:
+# - ES5 (strict mode)
+# - web sockets to communicate with backend
+# - inline SVG used widely in buttons, widgets, etc.
+# - custom events used for most user interactions
+# - CSS flexbox used in the majority of the layout
+# Nearly all of these are redundant with the above rules.
+# As of May 2023, only web sockets must be added to the query.
+unreleased versions
+last 7 years
+> 0.05% and supports websockets
@@ -1,13 +1,7 @@
 # See here for image contents: https://github.com/microsoft/vscode-dev-containers/tree/v0.148.1/containers/python-3/.devcontainer/base.Dockerfile
-FROM mcr.microsoft.com/vscode/devcontainers/python:0-3.10
+FROM mcr.microsoft.com/vscode/devcontainers/python:0-3.11

 ENV \
  DEBIAN_FRONTEND=noninteractive \
  DEVCONTAINER=true \
  PATH=$PATH:./node_modules/.bin
-
-# Install nvm
-COPY .nvmrc /tmp/.nvmrc
-RUN \
-  su vscode -c \
-    "source /usr/local/share/nvm/nvm.sh && nvm install $(cat /tmp/.nvmrc) 2>&1"
@@ -5,7 +5,7 @@
    "context": ".."
  },
  "appPort": "8124:8123",
-  "postCreateCommand": "script/bootstrap",
+  "postStartCommand": "script/bootstrap",
  "containerEnv": {
    "WORKSPACE_DIRECTORY": "${containerWorkspaceFolder}"
  },
@@ -20,7 +20,7 @@
  "settings": {
    "import/resolver": {
      "webpack": {
-        "config": "./webpack.config.js"
+        "config": "./webpack.config.cjs"
      }
    }
  },
@@ -59,7 +59,6 @@
    "prefer-destructuring": "off",
    "no-restricted-globals": [2, "event"],
    "prefer-promise-reject-errors": "off",
-    "no-unsafe-optional-chaining": "warn",
    "import/prefer-default-export": "off",
    "import/no-default-export": "off",
    "import/no-unresolved": "off",
@@ -120,7 +119,6 @@
    "lit/no-template-map": "off",
    "lit/no-native-attributes": "warn",
    "lit/no-this-assign-in-render": "warn",
-    "lit/prefer-nothing": "warn",
    "lit-a11y/click-events-have-key-events": ["off"],
    "lit-a11y/no-autofocus": "off",
    "lit-a11y/alt-text": "warn",
@@ -9,7 +9,7 @@ body:

        If you have a feature or enhancement request for the frontend, please [start an discussion][fr] instead of creating an issue.

-        **Please not not report issues for custom cards.**
+        **Please do not report issues for custom cards.**

        [fr]: https://github.com/home-assistant/frontend/discussions
        [releases]: https://github.com/home-assistant/home-assistant/releases
@@ -24,6 +24,7 @@ body:
          required: true
        - label: I have tried a different browser to see if it is related to my browser.
          required: true
+        - label: I have tried reproducing the issue in [safe mode](https://www.home-assistant.io/blog/2023/11/01/release-202311/#restarting-into-safe-mode) to rule out problems with unsupported custom resources.
  - type: markdown
    attributes:
      value: |
@@ -2,9 +2,7 @@
  You are amazing! Thanks for contributing to our project!
  Please, DO NOT DELETE ANY TEXT from this template! (unless instructed).
 -->
-
 ## Breaking change
-
 <!--
  If your PR contains a breaking change for existing users, it is important
  to tell them what breaks, how to make it work again and why we did this.
@@ -13,8 +11,8 @@
  Note: Remove this section if this PR is NOT a breaking change.
 -->

-## Proposed change

+## Proposed change
 <!--
  Describe the big picture of your changes here to communicate to the
  maintainers why we should accept this pull request. If it fixes a bug
@@ -22,8 +20,8 @@
  in the additional information section.
 -->

-## Type of change

+## Type of change
 <!--
  What type of change does your PR introduce to the Home Assistant frontend?
  NOTE: Please, check only 1! box!
@@ -38,7 +36,6 @@
 - [ ] Code quality improvements to existing code or addition of tests

 ## Example configuration
-
 <!--
  Supplying a configuration snippet, makes it easier for a maintainer to test
  your PR.
@@ -49,7 +46,6 @@
 ```

 ## Additional information
-
 <!--
  Details are important, and help maintainers processing your PR.
  Please be sure to fill out additional details, if applicable.
@@ -60,7 +56,6 @@
 - Link to documentation pull request:

 ## Checklist
-
 <!--
  Put an `x` in the boxes that apply. You can also fill these out after
  creating the PR. If you're unsure about any of them, don't hesitate to ask.
@@ -6,16 +6,6 @@ updates:
      interval: weekly
      time: "06:00"
    open-pull-requests-limit: 10
-  - package-ecosystem: "npm"
-    directory: "/"
-    schedule:
-      interval: "daily"
-      time: "03:00"
-    open-pull-requests-limit: 10
    labels:
-      - "dependencies"
-    ignore:
-      # Ignore rollup and plugins until everything else is updated
-      - dependency-name: "*rollup*"
-      - dependency-name: "@rollup/*"
-      - dependency-name: "serve"
+      - Dependencies
+      - GitHub Actions
@@ -0,0 +1,45 @@
+Build:
+  - changed-files:
+      - any-glob-to-any-file:
+          - build-scripts/**
+          - .browserslistrc
+          - gulpfile.js
+
+Cast:
+  - changed-files:
+      - any-glob-to-any-file:
+          - cast/src/**
+          - src/cast/**
+
+Demo:
+  - changed-files:
+      - any-glob-to-any-file:
+          - demo/src/**
+          - src/fake_data/**
+
+Design:
+  - changed-files:
+      - any-glob-to-any-file:
+          - gallery/src/**
+          - src/fake_data/**
+
+Dependencies:
+  - changed-files:
+      - any-glob-to-any-file:
+          - package.json
+          - renovate.json
+          - yarn.lock
+          - .yarn/**
+          - .yarnrc.yml
+          - .nvmrc
+
+GitHub Actions:
+  - changed-files:
+      - any-glob-to-any-file:
+          - .github/workflows/**
+          - .github/*.yml
+
+Supervisor:
+  - changed-files:
+      - any-glob-to-any-file:
+          - hassio/src/**
@@ -1,3 +1,8 @@
+categories:
+  - title: "Dependency updates"
+    collapse-after: 3
+    labels:
+      - "Dependencies"
 template: |
  ## What's Changed

@@ -9,7 +9,6 @@ on:
      - master

 env:
-  NODE_VERSION: 16
  NODE_OPTIONS: --max_old_space_size=6144

 jobs:
@@ -22,14 +21,14 @@ jobs:
      url: ${{ steps.deploy.outputs.NETLIFY_LIVE_URL || steps.deploy.outputs.NETLIFY_URL }}
    steps:
      - name: Check out files from GitHub
-        uses: actions/checkout@v3.3.0
+        uses: actions/checkout@v4.1.1
        with:
          ref: dev

-      - name: Set up Node ${{ env.NODE_VERSION }}
-        uses: actions/setup-node@v3.6.0
+      - name: Setup Node
+        uses: actions/setup-node@v4.0.1
        with:
-          node-version: ${{ env.NODE_VERSION }}
+          node-version-file: ".nvmrc"
          cache: yarn

      - name: Install dependencies
@@ -58,14 +57,14 @@ jobs:
      url: ${{ steps.deploy.outputs.NETLIFY_LIVE_URL || steps.deploy.outputs.NETLIFY_URL }}
    steps:
      - name: Check out files from GitHub
-        uses: actions/checkout@v3.3.0
+        uses: actions/checkout@v4.1.1
        with:
          ref: master

-      - name: Set up Node ${{ env.NODE_VERSION }}
-        uses: actions/setup-node@v3.6.0
+      - name: Setup Node
+        uses: actions/setup-node@v4.0.1
        with:
-          node-version: ${{ env.NODE_VERSION }}
+          node-version-file: ".nvmrc"
          cache: yarn

      - name: Install dependencies
@@ -11,7 +11,6 @@ on:
      - master

 env:
-  NODE_VERSION: 16
  NODE_OPTIONS: --max_old_space_size=6144
  GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

@@ -25,11 +24,11 @@ jobs:
    runs-on: ubuntu-latest
    steps:
      - name: Check out files from GitHub
-        uses: actions/checkout@v3.3.0
-      - name: Set up Node ${{ env.NODE_VERSION }}
-        uses: actions/setup-node@v3.6.0
+        uses: actions/checkout@v4.1.1
+      - name: Setup Node
+        uses: actions/setup-node@v4.0.1
        with:
-          node-version: ${{ env.NODE_VERSION }}
+          node-version-file: ".nvmrc"
          cache: yarn
      - name: Install dependencies
        run: yarn install --immutable
@@ -37,6 +36,14 @@ jobs:
        run: yarn dedupe --check
      - name: Build resources
        run: ./node_modules/.bin/gulp gen-icons-json build-translations build-locale-data gather-gallery-pages
+      - name: Setup lint cache
+        uses: actions/cache@v3.3.2
+        with:
+          path: |
+            node_modules/.cache/prettier
+            node_modules/.cache/eslint
+          key: lint-${{ github.sha }}
+          restore-keys: lint-
      - name: Run eslint
        run: yarn run lint:eslint --quiet
      - name: Run tsc
@@ -48,16 +55,16 @@ jobs:
    runs-on: ubuntu-latest
    steps:
      - name: Check out files from GitHub
-        uses: actions/checkout@v3.3.0
-      - name: Set up Node ${{ env.NODE_VERSION }}
-        uses: actions/setup-node@v3.6.0
+        uses: actions/checkout@v4.1.1
+      - name: Setup Node
+        uses: actions/setup-node@v4.0.1
        with:
-          node-version: ${{ env.NODE_VERSION }}
+          node-version-file: ".nvmrc"
          cache: yarn
      - name: Install dependencies
        run: yarn install --immutable
      - name: Build resources
-        run: ./node_modules/.bin/gulp build-translations build-locale-data
+        run: ./node_modules/.bin/gulp gen-icons-json build-translations build-locale-data
      - name: Run Tests
        run: yarn run test
  build:
@@ -66,11 +73,11 @@ jobs:
    runs-on: ubuntu-latest
    steps:
      - name: Check out files from GitHub
-        uses: actions/checkout@v3.3.0
-      - name: Set up Node ${{ env.NODE_VERSION }}
-        uses: actions/setup-node@v3.6.0
+        uses: actions/checkout@v4.1.1
+      - name: Setup Node
+        uses: actions/setup-node@v4.0.1
        with:
-          node-version: ${{ env.NODE_VERSION }}
+          node-version-file: ".nvmrc"
          cache: yarn
      - name: Install dependencies
        run: yarn install --immutable
@@ -78,17 +85,23 @@ jobs:
        run: ./node_modules/.bin/gulp build-app
        env:
          IS_TEST: "true"
+      - name: Upload bundle stats
+        uses: actions/upload-artifact@v3.1.3
+        with:
+          name: frontend-bundle-stats
+          path: build/stats/*.json
+          if-no-files-found: error
  supervisor:
    name: Build supervisor
    needs: [lint, test]
    runs-on: ubuntu-latest
    steps:
      - name: Check out files from GitHub
-        uses: actions/checkout@v3.3.0
-      - name: Set up Node ${{ env.NODE_VERSION }}
-        uses: actions/setup-node@v3.6.0
+        uses: actions/checkout@v4.1.1
+      - name: Setup Node
+        uses: actions/setup-node@v4.0.1
        with:
-          node-version: ${{ env.NODE_VERSION }}
+          node-version-file: ".nvmrc"
          cache: yarn
      - name: Install dependencies
        run: yarn install --immutable
@@ -96,3 +109,9 @@ jobs:
        run: ./node_modules/.bin/gulp build-hassio
        env:
          IS_TEST: "true"
+      - name: Upload bundle stats
+        uses: actions/upload-artifact@v3.1.3
+        with:
+          name: supervisor-bundle-stats
+          path: build/stats/*.json
+          if-no-files-found: error
@@ -17,44 +17,44 @@ jobs:
      matrix:
        # Override automatic language detection by changing the below list
        # Supported options are ['csharp', 'cpp', 'go', 'java', 'javascript', 'python']
-        language: ['javascript']
+        language: ["javascript"]
        # Learn more...
        # https://docs.github.com/en/github/finding-security-vulnerabilities-and-errors-in-your-code/configuring-code-scanning#overriding-automatic-language-detection

    steps:
-    - name: Checkout repository
-      uses: actions/checkout@v3.3.0
-      with:
-        # We must fetch at least the immediate parents so that if this is
-        # a pull request then we can checkout the head.
-        fetch-depth: 2
+      - name: Checkout repository
+        uses: actions/checkout@v4.1.1
+        with:
+          # We must fetch at least the immediate parents so that if this is
+          # a pull request then we can checkout the head.
+          fetch-depth: 2

-    # If this run was triggered by a pull request event, then checkout
-    # the head of the pull request instead of the merge commit.
-    - run: git checkout HEAD^2
-      if: ${{ github.event_name == 'pull_request' }}
+      # If this run was triggered by a pull request event, then checkout
+      # the head of the pull request instead of the merge commit.
+      - run: git checkout HEAD^2
+        if: ${{ github.event_name == 'pull_request' }}

-    # Initializes the CodeQL tools for scanning.
-    - name: Initialize CodeQL
-      uses: github/codeql-action/init@v2
-      with:
-        languages: ${{ matrix.language }}
+      # Initializes the CodeQL tools for scanning.
+      - name: Initialize CodeQL
+        uses: github/codeql-action/init@v3
+        with:
+          languages: ${{ matrix.language }}

-    # Autobuild attempts to build any compiled languages  (C/C++, C#, or Java).
-    # If this step fails, then you should remove it and run the build manually (see below)
-    - name: Autobuild
-      uses: github/codeql-action/autobuild@v2
+      # Autobuild attempts to build any compiled languages  (C/C++, C#, or Java).
+      # If this step fails, then you should remove it and run the build manually (see below)
+      - name: Autobuild
+        uses: github/codeql-action/autobuild@v3

-    # ℹ️ Command-line programs to run using the OS shell.
-    # 📚 https://git.io/JvXDl
+      # ℹ️ Command-line programs to run using the OS shell.
+      # 📚 https://git.io/JvXDl

-    # ✏️ If the Autobuild fails above, remove it and uncomment the following three lines
-    #    and modify them (or add more) to build your code if your project
-    #    uses a compiled language
+      # ✏️ If the Autobuild fails above, remove it and uncomment the following three lines
+      #    and modify them (or add more) to build your code if your project
+      #    uses a compiled language

-    #- run: |
-    #   make bootstrap
-    #   make release
+      #- run: |
+      #   make bootstrap
+      #   make release

-    - name: Perform CodeQL Analysis
-      uses: github/codeql-action/analyze@v2
+      - name: Perform CodeQL Analysis
+        uses: github/codeql-action/analyze@v3
@@ -10,27 +10,26 @@ on:
      - master

 env:
-  NODE_VERSION: 16
  NODE_OPTIONS: --max_old_space_size=6144

 jobs:
  deploy_dev:
    runs-on: ubuntu-latest
    name: Demo Development
-    if: github.event_name != 'push' || github.ref != 'master'
+    if: github.event_name != 'push' || github.ref_name != 'master'
    environment:
      name: Demo Development
      url: ${{ steps.deploy.outputs.NETLIFY_LIVE_URL || steps.deploy.outputs.NETLIFY_URL }}
    steps:
      - name: Check out files from GitHub
-        uses: actions/checkout@v3.3.0
+        uses: actions/checkout@v4.1.1
        with:
          ref: dev

-      - name: Set up Node ${{ env.NODE_VERSION }}
-        uses: actions/setup-node@v3.6.0
+      - name: Setup Node
+        uses: actions/setup-node@v4.0.1
        with:
-          node-version: ${{ env.NODE_VERSION }}
+          node-version-file: ".nvmrc"
          cache: yarn

      - name: Install dependencies
@@ -53,20 +52,20 @@ jobs:
  deploy_master:
    runs-on: ubuntu-latest
    name: Demo Production
-    if: github.event_name == 'push' && github.ref == 'master'
+    if: github.event_name == 'push' && github.ref_name == 'master'
    environment:
      name: Demo Production
      url: ${{ steps.deploy.outputs.NETLIFY_LIVE_URL || steps.deploy.outputs.NETLIFY_URL }}
    steps:
      - name: Check out files from GitHub
-        uses: actions/checkout@v3.3.0
+        uses: actions/checkout@v4.1.1
        with:
          ref: master

-      - name: Set up Node ${{ env.NODE_VERSION }}
-        uses: actions/setup-node@v3.6.0
+      - name: Setup Node
+        uses: actions/setup-node@v4.0.1
        with:
-          node-version: ${{ env.NODE_VERSION }}
+          node-version-file: ".nvmrc"
          cache: yarn

      - name: Install dependencies
@@ -6,7 +6,6 @@ on:
    - cron: "0 0 * * *"

 env:
-  NODE_VERSION: 16
  NODE_OPTIONS: --max_old_space_size=6144

 jobs:
@@ -17,12 +16,12 @@ jobs:
      url: ${{ steps.deploy.outputs.NETLIFY_LIVE_URL || steps.deploy.outputs.NETLIFY_URL }}
    steps:
      - name: Check out files from GitHub
-        uses: actions/checkout@v3.3.0
+        uses: actions/checkout@v4.1.1

-      - name: Set up Node ${{ env.NODE_VERSION }}
-        uses: actions/setup-node@v3.6.0
+      - name: Setup Node
+        uses: actions/setup-node@v4.0.1
        with:
-          node-version: ${{ env.NODE_VERSION }}
+          node-version-file: ".nvmrc"
          cache: yarn

      - name: Install dependencies
@@ -11,7 +11,6 @@ on:
      - dev

 env:
-  NODE_VERSION: 16
  NODE_OPTIONS: --max_old_space_size=6144

 jobs:
@@ -22,12 +21,12 @@ jobs:
    if: github.repository == 'home-assistant/frontend' && contains(github.event.pull_request.labels.*.name, 'needs design preview')
    steps:
      - name: Check out files from GitHub
-        uses: actions/checkout@v3.3.0
+        uses: actions/checkout@v4.1.1

-      - name: Set up Node ${{ env.NODE_VERSION }}
-        uses: actions/setup-node@v3.6.0
+      - name: Setup Node
+        uses: actions/setup-node@v4.0.1
        with:
-          node-version: ${{ env.NODE_VERSION }}
+          node-version-file: ".nvmrc"
          cache: yarn

      - name: Install dependencies
@@ -0,0 +1,15 @@
+name: "Pull Request Labeler"
+
+on: pull_request_target
+
+jobs:
+  triage:
+    permissions:
+      contents: read
+      pull-requests: write
+    runs-on: ubuntu-latest
+    steps:
+      - name: Apply labels
+        uses: actions/labeler@v5.0.0
+        with:
+          sync-labels: true
@@ -9,9 +9,10 @@ jobs:
  lock:
    runs-on: ubuntu-latest
    steps:
-      - uses: dessant/lock-threads@v4.0.0
+      - uses: dessant/lock-threads@v5.0.1
        with:
          github-token: ${{ github.token }}
+          process-only: "issues, prs"
          issue-lock-inactive-days: "30"
          issue-exclude-created-before: "2020-10-01T00:00:00Z"
          issue-lock-reason: ""
@@ -6,8 +6,7 @@ on:
    - cron: "0 1 * * *"

 env:
-  PYTHON_VERSION: "3.10"
-  NODE_VERSION: 16
+  PYTHON_VERSION: "3.11"
  NODE_OPTIONS: --max_old_space_size=6144

 permissions:
@@ -21,17 +20,17 @@ jobs:
      contents: write
    steps:
      - name: Checkout the repository
-        uses: actions/checkout@v3.3.0
+        uses: actions/checkout@v4.1.1

      - name: Set up Python ${{ env.PYTHON_VERSION }}
-        uses: actions/setup-python@v4
+        uses: actions/setup-python@v5
        with:
          python-version: ${{ env.PYTHON_VERSION }}

-      - name: Set up Node ${{ env.NODE_VERSION }}
-        uses: actions/setup-node@v3.6.0
+      - name: Setup Node
+        uses: actions/setup-node@v4.0.1
        with:
-          node-version: ${{ env.NODE_VERSION }}
+          node-version-file: ".nvmrc"
          cache: yarn

      - name: Install dependencies
@@ -43,7 +42,7 @@ jobs:
          LOKALISE_TOKEN: ${{ secrets.LOKALISE_TOKEN }}

      - name: Bump version
-        run: script/version_bump.js nightly
+        run: script/version_bump.cjs nightly

      - name: Build nightly Python wheels
        run: |
@@ -58,14 +57,14 @@ jobs:
        run: tar -czvf translations.tar.gz translations

      - name: Upload build artifacts
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v3.1.3
        with:
          name: wheels
          path: dist/home_assistant_frontend*.whl
          if-no-files-found: error

      - name: Upload translations
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v3.1.3
        with:
          name: translations
          path: translations.tar.gz
@@ -0,0 +1,25 @@
+name: RelativeCI
+
+on:
+  workflow_run:
+    workflows: [CI]
+    types:
+      - completed
+
+jobs:
+  upload:
+    name: Upload stats
+    if: ${{ github.event.workflow_run.conclusion == 'success' }}
+    strategy:
+      matrix:
+        bundle: [frontend, supervisor]
+        build: [modern, legacy]
+    runs-on: ubuntu-latest
+    steps:
+      - name: Send bundle stats and build information to RelativeCI
+        uses: relative-ci/agent-action@v2.1.10
+        with:
+          key: ${{ secrets[format('RELATIVE_CI_KEY_{0}_{1}', matrix.bundle, matrix.build)] }}
+          token: ${{ github.token }}
+          artifactName: ${{ format('{0}-bundle-stats', matrix.bundle) }}
+          webpackStatsFile: ${{ format('{0}-{1}.json', matrix.bundle, matrix.build) }}
@@ -5,8 +5,17 @@ on:
    branches:
      - dev

+permissions:
+  contents: read
+
 jobs:
  update_release_draft:
+    permissions:
+      # write permission for contents is required to create a github release
+      contents: write
+      # write permission for pull-requests is required for autolabeler
+      # otherwise, read permission is required at least
+      pull-requests: read
    runs-on: ubuntu-latest
    steps:
      - uses: release-drafter/release-drafter@v5
@@ -6,8 +6,7 @@ on:
      - published

 env:
-  PYTHON_VERSION: "3.10"
-  NODE_VERSION: 16
+  PYTHON_VERSION: "3.11"
  NODE_OPTIONS: --max_old_space_size=6144

 # Set default workflow permissions
@@ -24,20 +23,20 @@ jobs:
      contents: write # Required to upload release assets
    steps:
      - name: Checkout the repository
-        uses: actions/checkout@v3.3.0
+        uses: actions/checkout@v4.1.1

      - name: Verify version
        uses: home-assistant/actions/helpers/verify-version@master

      - name: Set up Python ${{ env.PYTHON_VERSION }}
-        uses: actions/setup-python@v4
+        uses: actions/setup-python@v5
        with:
          python-version: ${{ env.PYTHON_VERSION }}

-      - name: Set up Node ${{ env.NODE_VERSION }}
-        uses: actions/setup-node@v3.6.0
+      - name: Setup Node
+        uses: actions/setup-node@v4.0.1
        with:
-          node-version: ${{ env.NODE_VERSION }}
+          node-version-file: ".nvmrc"
          cache: yarn

      - name: Install dependencies
@@ -75,9 +74,9 @@ jobs:
          echo "home-assistant-frontend==$version" > ./requirements.txt

      - name: Build wheels
-        uses: home-assistant/wheels@2022.10.1
+        uses: home-assistant/wheels@2023.10.5
        with:
-          abi: cp310
+          abi: cp311
          tag: musllinux_1_2
          arch: amd64
          wheels-key: ${{ secrets.WHEELS_KEY }}
@@ -10,7 +10,7 @@ jobs:
    runs-on: ubuntu-latest
    steps:
      - name: 90 days stale policy
-        uses: actions/stale@v7.0.0
+        uses: actions/stale@v9.0.0
        with:
          repo-token: ${{ secrets.GITHUB_TOKEN }}
          days-before-stale: 90
@@ -7,19 +7,15 @@ on:
    paths:
      - src/translations/en.json

-env:
-  NODE_VERSION: 16
-
 jobs:
  upload:
    name: Upload
    runs-on: ubuntu-latest
    steps:
      - name: Checkout the repository
-        uses: actions/checkout@v3.3.0
+        uses: actions/checkout@v4.1.1

      - name: Upload Translations
        run: |
          export LOKALISE_TOKEN="${{ secrets.LOKALISE_TOKEN }}"
-
          ./script/translations_upload_base
@@ -47,3 +47,6 @@ src/cast/dev_const.ts

 # Home Assistant config
 /config/
+
+# Jetbrains
+/.idea/
@@ -1 +1 @@
-16
+lts/iron
@@ -1,9 +1,4 @@
-build
-translations/*
-node_modules/*
-hass_frontend/*
-pip-selfcheck.json
-
-# vscode
-.vscode/*
-!.vscode/extensions.json
+CLA.md
+CODE_OF_CONDUCT.md
+LICENSE.md
+PULL_REQUEST_TEMPLATE.md
@@ -9,9 +9,7 @@
      "webRoot": "${workspaceFolder}/hass_frontend",
      "disableNetworkCache": true,
      "preLaunchTask": "Develop Frontend",
-      "outFiles": [
-        "${workspaceFolder}/hass_frontend/frontend_latest/*.js"
-      ]
+      "outFiles": ["${workspaceFolder}/hass_frontend/frontend_latest/*.js"]
    },
    {
      "name": "Debug Gallery",
@@ -39,6 +37,6 @@
      "webRoot": "${workspaceFolder}/cast/dist",
      "disableNetworkCache": true,
      "preLaunchTask": "Develop Cast"
-    },
+    }
  ]
 }
@@ -197,7 +197,7 @@
      "type": "gulp",
      "task": "setup-and-fetch-nightly-translations",
      "problemMatcher": []
-          }
+    }
  ],
  "inputs": [
    {
@@ -0,0 +1,39 @@
+diff --git a/modular/sortable.complete.esm.js b/modular/sortable.complete.esm.js
+index 02e9f2d6bebeb430fe6e7c1cc3f9c3c9df051f14..bb8268b0844a1faa4108cc92c0be2a3dbaf23f83 100644
+--- a/modular/sortable.complete.esm.js
+++ b/modular/sortable.complete.esm.js
+@@ -1657,7 +1657,7 @@ Sortable.prototype =
+           target = parent; // store last element
+         }
+         /* jshint boss:true */
+-        while (parent = parent.parentNode);
+        while (parent = parent.parentNode || parent.getRootNode().host);
+       }
+ 
+       _unhideGhostForTarget();
+diff --git a/modular/sortable.core.esm.js b/modular/sortable.core.esm.js
+index b04c8b4634f7c6b4ef1aadbb48afe6564306dea9..39a107163c8c336ebd669b5ea8a936af87e1c1e7 100644
+--- a/modular/sortable.core.esm.js
+++ b/modular/sortable.core.esm.js
+@@ -1657,7 +1657,7 @@ Sortable.prototype =
+           target = parent; // store last element
+         }
+         /* jshint boss:true */
+-        while (parent = parent.parentNode);
+        while (parent = parent.parentNode || parent.getRootNode().host);
+       }
+ 
+       _unhideGhostForTarget();
+diff --git a/modular/sortable.esm.js b/modular/sortable.esm.js
+index 6ec7ed1bb557e21c2578200161e989c65d23150b..0a05475a22904472fac6c13f524c674da76584b0 100644
+--- a/modular/sortable.esm.js
+++ b/modular/sortable.esm.js
+@@ -1657,7 +1657,7 @@ Sortable.prototype =
+           target = parent; // store last element
+         }
+         /* jshint boss:true */
+-        while (parent = parent.parentNode);
+        while (parent = parent.parentNode || parent.getRootNode().host);
+       }
+ 
+       _unhideGhostForTarget();
@@ -1,9 +1,9 @@
+compressionLevel: mixed
+
+defaultSemverRangePrefix: ""
+
+enableGlobalCache: false
+
 nodeLinker: node-modules

-plugins:
-  - path: .yarn/plugins/@yarnpkg/plugin-typescript.cjs
-    spec: "@yarnpkg/plugin-typescript"
-  - path: .yarn/plugins/@yarnpkg/plugin-interactive-tools.cjs
-    spec: "@yarnpkg/plugin-interactive-tools"
-
-yarnPath: .yarn/releases/yarn-3.3.1.cjs
+yarnPath: .yarn/releases/yarn-4.0.2.cjs
@@ -0,0 +1,56 @@
+import defineProvider from "@babel/helper-define-polyfill-provider";
+
+// List of polyfill keys with supported browser targets for the functionality
+const PolyfillSupport = {
+  fetch: {
+    android: 42,
+    chrome: 42,
+    edge: 14,
+    firefox: 39,
+    ios: 10.3,
+    opera: 29,
+    opera_mobile: 29,
+    safari: 10.1,
+    samsung: 4.0,
+  },
+  proxy: {
+    android: 49,
+    chrome: 49,
+    edge: 12,
+    firefox: 18,
+    ios: 10.0,
+    opera: 36,
+    opera_mobile: 36,
+    safari: 10.0,
+    samsung: 5.0,
+  },
+};
+
+// Map of global variables and/or instance and static properties to the
+// corresponding polyfill key and actual module to import
+const polyfillMap = {
+  global: {
+    Proxy: { key: "proxy", module: "proxy-polyfill" },
+    fetch: { key: "fetch", module: "unfetch/polyfill" },
+  },
+  instance: {},
+  static: {},
+};
+
+// Create plugin using the same factory as for CoreJS
+export default defineProvider(
+  ({ createMetaResolver, debug, shouldInjectPolyfill }) => {
+    const resolvePolyfill = createMetaResolver(polyfillMap);
+    return {
+      name: "HA Custom",
+      polyfills: PolyfillSupport,
+      usageGlobal(meta, utils) {
+        const polyfill = resolvePolyfill(meta);
+        if (polyfill && shouldInjectPolyfill(polyfill.desc.key)) {
+          debug(polyfill.desc.key);
+          utils.injectGlobalImport(polyfill.desc.module);
+        }
+      },
+    };
+  }
+);
@@ -1,13 +1,19 @@
 const path = require("path");
-const env = require("./env.js");
-const paths = require("./paths.js");
+const env = require("./env.cjs");
+const paths = require("./paths.cjs");
+const { dependencies } = require("../package.json");
+
+// GitHub base URL to use for production source maps
+// Nightly builds use the commit SHA, otherwise assumes there is a tag that matches the version
+module.exports.sourceMapURL = () => {
+  const ref = env.version().endsWith("dev")
+    ? process.env.GITHUB_SHA || "dev"
+    : env.version();
+  return `https://raw.githubusercontent.com/home-assistant/frontend/${ref}/`;
+};

 // Files from NPM Packages that should not be imported
-// eslint-disable-next-line unused-imports/no-unused-vars
-module.exports.ignorePackages = ({ latestBuild }) => [
-  // Part of yaml.js and only used for !!js functions that we don't use
-  require.resolve("esprima"),
-];
+module.exports.ignorePackages = () => [];

 // Files from NPM packages that we should replace with empty file
 module.exports.emptyPackages = ({ latestBuild, isHassioBuild }) =>
@@ -26,8 +32,6 @@ module.exports.emptyPackages = ({ latestBuild, isHassioBuild }) =>
      require.resolve(
        path.resolve(paths.polymer_dir, "src/resources/compatibility.ts")
      ),
-    // This polyfill is loaded in workers to support ES5, filter it out.
-    latestBuild && require.resolve("proxy-polyfill/src/index.js"),
    // Icons in supervisor conflict with icons in HA so we don't load.
    isHassioBuild &&
      require.resolve(
@@ -53,60 +57,117 @@ module.exports.definedVars = ({ isProdBuild, latestBuild, defineOverlay }) => ({
  ...defineOverlay,
 });

-module.exports.terserOptions = (latestBuild) => ({
+module.exports.htmlMinifierOptions = {
+  caseSensitive: true,
+  collapseWhitespace: true,
+  conservativeCollapse: true,
+  decodeEntities: true,
+  removeComments: true,
+  removeRedundantAttributes: true,
+  minifyCSS: {
+    compatibility: "*,-properties.zeroUnits",
+  },
+};
+
+module.exports.terserOptions = ({ latestBuild, isTestBuild }) => ({
  safari10: !latestBuild,
-  ecma: latestBuild ? undefined : 5,
-  output: { comments: false },
+  ecma: latestBuild ? 2015 : 5,
+  module: latestBuild,
+  format: { comments: false },
+  sourceMap: !isTestBuild,
 });

-module.exports.babelOptions = ({ latestBuild }) => ({
+module.exports.babelOptions = ({ latestBuild, isProdBuild, isTestBuild }) => ({
  babelrc: false,
  compact: false,
+  assumptions: {
+    privateFieldsAsProperties: true,
+    setPublicClassFields: true,
+    setSpreadProperties: true,
+  },
+  browserslistEnv: latestBuild ? "modern" : "legacy",
  presets: [
-    !latestBuild && [
+    [
      "@babel/preset-env",
      {
-        useBuiltIns: "entry",
-        corejs: { version: "3.28", proposals: true },
+        useBuiltIns: latestBuild ? false : "usage",
+        corejs: latestBuild ? false : dependencies["core-js"],
        bugfixes: true,
+        shippedProposals: true,
      },
    ],
    "@babel/preset-typescript",
-  ].filter(Boolean),
+  ],
  plugins: [
    [
      path.resolve(
        paths.polymer_dir,
-        "build-scripts/babel-plugins/inline-constants-plugin.js"
+        "build-scripts/babel-plugins/inline-constants-plugin.cjs"
      ),
      {
        modules: ["@mdi/js"],
        ignoreModuleNotFound: true,
      },
    ],
-    // Part of ES2018. Converts {...a, b: 2} to Object.assign({}, a, {b: 2})
-    !latestBuild && [
-      "@babel/plugin-proposal-object-rest-spread",
-      { loose: true, useBuiltIns: true },
+    [
+      path.resolve(
+        paths.polymer_dir,
+        "build-scripts/babel-plugins/custom-polyfill-plugin.js"
+      ),
+      { method: "usage-global" },
    ],
-    // Only support the syntax, Webpack will handle it.
-    "@babel/plugin-syntax-import-meta",
-    "@babel/plugin-syntax-dynamic-import",
-    "@babel/plugin-syntax-top-level-await",
-    "@babel/plugin-proposal-optional-chaining",
-    "@babel/plugin-proposal-nullish-coalescing-operator",
+    // Minify template literals for production
+    isProdBuild && [
+      "template-html-minifier",
+      {
+        modules: {
+          ...Object.fromEntries(
+            ["lit", "lit-element", "lit-html"].map((m) => [
+              m,
+              [
+                "html",
+                { name: "svg", encapsulation: "svg" },
+                { name: "css", encapsulation: "style" },
+              ],
+            ])
+          ),
+          "@polymer/polymer/lib/utils/html-tag.js": ["html"],
+        },
+        strictCSS: true,
+        htmlMinifier: module.exports.htmlMinifierOptions,
+        failOnError: false, // we can turn this off in case of false positives
+      },
+    ],
+    // Import helpers and regenerator from runtime package
+    [
+      "@babel/plugin-transform-runtime",
+      { version: dependencies["@babel/runtime"] },
+    ],
+    // Support  some proposals still in TC39 process
    ["@babel/plugin-proposal-decorators", { decoratorsBeforeExport: true }],
-    ["@babel/plugin-proposal-private-methods", { loose: true }],
-    ["@babel/plugin-proposal-private-property-in-object", { loose: true }],
-    ["@babel/plugin-proposal-class-properties", { loose: true }],
  ].filter(Boolean),
  exclude: [
    // \\ for Windows, / for Mac OS and Linux
    /node_modules[\\/]core-js/,
    /node_modules[\\/]webpack[\\/]buildin/,
  ],
+  sourceMaps: !isTestBuild,
+  overrides: [
+    {
+      // Use unambiguous for dependencies so that require() is correctly injected into CommonJS files
+      // Exclusions are needed in some cases where ES modules have no static imports or exports, such as polyfills
+      sourceType: "unambiguous",
+      include: /\/node_modules\//,
+      exclude: [
+        "element-internals-polyfill",
+        "@?lit(?:-labs|-element|-html)?",
+      ].map((p) => new RegExp(`/node_modules/${p}/`)),
+    },
+  ],
 });

+const nameSuffix = (latestBuild) => (latestBuild ? "-modern" : "-legacy");
+
 const outputPath = (outputRoot, latestBuild) =>
  path.resolve(outputRoot, latestBuild ? "frontend_latest" : "frontend_es5");

@@ -114,29 +175,32 @@ const publicPath = (latestBuild, root = "") =>
  latestBuild ? `${root}/frontend_latest/` : `${root}/frontend_es5/`;

 /*
-BundleConfig {
-  // Object with entrypoints that need to be bundled
-  entry: { [name: string]: pathToFile },
-  // Folder where bundled files need to be written
-  outputPath: string,
-  // absolute url-path where bundled files can be found
-  publicPath: string,
-  // extra definitions that we need to replace in source
-  defineOverlay: {[name: string]: value },
-  // if this is a production build
-  isProdBuild: boolean,
-  // If we're targeting latest browsers
-  latestBuild: boolean,
-  // If we're doing a stats build (create nice chunk names)
-  isStatsBuild: boolean,
-  // Names of entrypoints that should not be hashed
-  dontHash: Set<string>
-}
-*/
+  BundleConfig {
+    // Object with entrypoints that need to be bundled
+    entry: { [name: string]: pathToFile },
+    // Folder where bundled files need to be written
+    outputPath: string,
+    // absolute url-path where bundled files can be found
+    publicPath: string,
+    // extra definitions that we need to replace in source
+    defineOverlay: {[name: string]: value },
+    // if this is a production build
+    isProdBuild: boolean,
+    // If we're targeting latest browsers
+    latestBuild: boolean,
+    // If we're doing a stats build (create nice chunk names)
+    isStatsBuild: boolean,
+    // If it's just a test build in CI, skip time on source map generation
+    isTestBuild: boolean,
+    // Names of entrypoints that should not be hashed
+    dontHash: Set<string>
+  }
+  */

 module.exports.config = {
-  app({ isProdBuild, latestBuild, isStatsBuild, isWDS }) {
+  app({ isProdBuild, latestBuild, isStatsBuild, isTestBuild, isWDS }) {
    return {
+      name: "frontend" + nameSuffix(latestBuild),
      entry: {
        service_worker: "./src/entrypoints/service_worker.ts",
        app: "./src/entrypoints/app.ts",
@@ -150,12 +214,14 @@ module.exports.config = {
      isProdBuild,
      latestBuild,
      isStatsBuild,
+      isTestBuild,
      isWDS,
    };
  },

  demo({ isProdBuild, latestBuild, isStatsBuild }) {
    return {
+      name: "demo" + nameSuffix(latestBuild),
      entry: {
        main: path.resolve(paths.demo_dir, "src/entrypoint.ts"),
      },
@@ -185,6 +251,7 @@ module.exports.config = {
    }

    return {
+      name: "cast" + nameSuffix(latestBuild),
      entry,
      outputPath: outputPath(paths.cast_output_root, latestBuild),
      publicPath: publicPath(latestBuild),
@@ -196,8 +263,9 @@ module.exports.config = {
    };
  },

-  hassio({ isProdBuild, latestBuild }) {
+  hassio({ isProdBuild, latestBuild, isStatsBuild, isTestBuild }) {
    return {
+      name: "supervisor" + nameSuffix(latestBuild),
      entry: {
        entrypoint: path.resolve(paths.hassio_dir, "src/entrypoint.ts"),
      },
@@ -205,15 +273,19 @@ module.exports.config = {
      publicPath: publicPath(latestBuild, paths.hassio_publicPath),
      isProdBuild,
      latestBuild,
+      isStatsBuild,
+      isTestBuild,
      isHassioBuild: true,
      defineOverlay: {
        __SUPERVISOR__: true,
+        __STATIC_PATH__: `"${paths.hassio_publicPath}/static/"`,
      },
    };
  },

  gallery({ isProdBuild, latestBuild }) {
    return {
+      name: "gallery" + nameSuffix(latestBuild),
      entry: {
        entrypoint: path.resolve(paths.gallery_dir, "src/entrypoint.js"),
      },
@@ -1,6 +1,6 @@
 const fs = require("fs");
 const path = require("path");
-const paths = require("./paths.js");
+const paths = require("./paths.cjs");

 module.exports = {
  useRollup() {
@@ -17,7 +17,7 @@ module.exports = {
  isStatsBuild() {
    return process.env.STATS === "1";
  },
-  isTest() {
+  isTestBuild() {
    return process.env.IS_TEST === "true";
  },
  isNetlify() {
@@ -1,19 +1,16 @@
-// Run HA develop mode
-const gulp = require("gulp");
-
-const env = require("../env");
-
-require("./clean.js");
-require("./translations.js");
-require("./locale-data.js");
-require("./gen-icons-json.js");
-require("./gather-static.js");
-require("./compress.js");
-require("./webpack.js");
-require("./service-worker.js");
-require("./entry-html.js");
-require("./rollup.js");
-require("./wds.js");
+import gulp from "gulp";
+import env from "../env.cjs";
+import "./clean.js";
+import "./compress.js";
+import "./entry-html.js";
+import "./gather-static.js";
+import "./gen-icons-json.js";
+import "./locale-data.js";
+import "./rollup.js";
+import "./service-worker.js";
+import "./translations.js";
+import "./wds.js";
+import "./webpack.js";

 gulp.task(
  "develop-app",
@@ -25,8 +22,7 @@ gulp.task(
    gulp.parallel(
      "gen-service-worker-app-dev",
      "gen-icons-json",
-      "gen-pages-dev",
-      "gen-index-app-dev",
+      "gen-pages-app-dev",
      "build-translations",
      "build-locale-data"
    ),
@@ -34,8 +30,8 @@ gulp.task(
    env.useWDS()
      ? "wds-watch-app"
      : env.useRollup()
-      ? "rollup-watch-app"
-      : "webpack-watch-app"
+        ? "rollup-watch-app"
+        : "webpack-watch-app"
  )
 );

@@ -49,12 +45,8 @@ gulp.task(
    gulp.parallel("gen-icons-json", "build-translations", "build-locale-data"),
    "copy-static-app",
    env.useRollup() ? "rollup-prod-app" : "webpack-prod-app",
+    gulp.parallel("gen-pages-app-prod", "gen-service-worker-app-prod"),
    // Don't compress running tests
-    ...(env.isTest() ? [] : ["compress-app"]),
-    gulp.parallel(
-      "gen-pages-prod",
-      "gen-index-app-prod",
-      "gen-service-worker-app-prod"
-    )
+    ...(env.isTestBuild() ? [] : ["compress-app"])
  )
 );
@@ -1,14 +1,12 @@
-const gulp = require("gulp");
-
-const env = require("../env");
-
-require("./clean.js");
-require("./translations.js");
-require("./gather-static.js");
-require("./webpack.js");
-require("./service-worker.js");
-require("./entry-html.js");
-require("./rollup.js");
+import gulp from "gulp";
+import env from "../env.cjs";
+import "./clean.js";
+import "./entry-html.js";
+import "./gather-static.js";
+import "./rollup.js";
+import "./service-worker.js";
+import "./translations.js";
+import "./webpack.js";

 gulp.task(
  "develop-cast",
@@ -20,7 +18,7 @@ gulp.task(
    "translations-enable-merge-backend",
    gulp.parallel("gen-icons-json", "build-translations", "build-locale-data"),
    "copy-static-cast",
-    "gen-index-cast-dev",
+    "gen-pages-cast-dev",
    env.useRollup() ? "rollup-dev-server-cast" : "webpack-dev-server-cast"
  )
 );
@@ -36,6 +34,6 @@ gulp.task(
    gulp.parallel("gen-icons-json", "build-translations", "build-locale-data"),
    "copy-static-cast",
    env.useRollup() ? "rollup-prod-cast" : "webpack-prod-cast",
-    "gen-index-cast-prod"
+    "gen-pages-cast-prod"
  )
 );
@@ -1,37 +1,37 @@
-const del = import("del");
-const gulp = require("gulp");
-const paths = require("../paths");
-require("./translations");
+import { deleteSync } from "del";
+import gulp from "gulp";
+import paths from "../paths.cjs";
+import "./translations.js";

 gulp.task(
  "clean",
  gulp.parallel("clean-translations", async () =>
-    (await del).deleteSync([paths.app_output_root, paths.build_dir])
+    deleteSync([paths.app_output_root, paths.build_dir])
  )
 );

 gulp.task(
  "clean-demo",
  gulp.parallel("clean-translations", async () =>
-    (await del).deleteSync([paths.demo_output_root, paths.build_dir])
+    deleteSync([paths.demo_output_root, paths.build_dir])
  )
 );

 gulp.task(
  "clean-cast",
  gulp.parallel("clean-translations", async () =>
-    (await del).deleteSync([paths.cast_output_root, paths.build_dir])
+    deleteSync([paths.cast_output_root, paths.build_dir])
  )
 );

 gulp.task("clean-hassio", async () =>
-  (await del).deleteSync([paths.hassio_output_root, paths.build_dir])
+  deleteSync([paths.hassio_output_root, paths.build_dir])
 );

 gulp.task(
  "clean-gallery",
  gulp.parallel("clean-translations", async () =>
-    (await del).deleteSync([
+    deleteSync([
      paths.gallery_output_root,
      paths.gallery_build,
      paths.build_dir,
@@ -1,45 +1,16 @@
 // Tasks to compress

-const gulp = require("gulp");
-const zopfli = require("gulp-zopfli-green");
-const merge = require("merge-stream");
-const path = require("path");
-const paths = require("../paths");
+import gulp from "gulp";
+import zopfli from "gulp-zopfli-green";
+import paths from "../paths.cjs";

 const zopfliOptions = { threshold: 150 };

-gulp.task("compress-app", function compressApp() {
-  const jsLatest = gulp
-    .src(path.resolve(paths.app_output_latest, "**/*.js"))
+const compressDist = (rootDir) =>
+  gulp
+    .src([`${rootDir}/**/*.{js,json,css,svg}`])
    .pipe(zopfli(zopfliOptions))
-    .pipe(gulp.dest(paths.app_output_latest));
+    .pipe(gulp.dest(rootDir));

-  const jsEs5 = gulp
-    .src(path.resolve(paths.app_output_es5, "**/*.js"))
-    .pipe(zopfli(zopfliOptions))
-    .pipe(gulp.dest(paths.app_output_es5));
-
-  const polyfills = gulp
-    .src(path.resolve(paths.app_output_static, "polyfills/*.js"))
-    .pipe(zopfli(zopfliOptions))
-    .pipe(gulp.dest(path.resolve(paths.app_output_static, "polyfills")));
-
-  const translations = gulp
-    .src(path.resolve(paths.app_output_static, "translations/**/*.json"))
-    .pipe(zopfli(zopfliOptions))
-    .pipe(gulp.dest(path.resolve(paths.app_output_static, "translations")));
-
-  const icons = gulp
-    .src(path.resolve(paths.app_output_static, "mdi/*.json"))
-    .pipe(zopfli(zopfliOptions))
-    .pipe(gulp.dest(path.resolve(paths.app_output_static, "mdi")));
-
-  return merge(jsLatest, jsEs5, polyfills, translations, icons);
-});
-
-gulp.task("compress-hassio", function compressApp() {
-  return gulp
-    .src(path.resolve(paths.hassio_output_root, "**/*.js"))
-    .pipe(zopfli(zopfliOptions))
-    .pipe(gulp.dest(paths.hassio_output_root));
-});
+gulp.task("compress-app", () => compressDist(paths.app_output_root));
+gulp.task("compress-hassio", () => compressDist(paths.hassio_output_root));
@@ -1,16 +1,13 @@
-// Run demo develop mode
-const gulp = require("gulp");
-
-const env = require("../env");
-
-require("./clean.js");
-require("./translations.js");
-require("./gen-icons-json.js");
-require("./gather-static.js");
-require("./webpack.js");
-require("./service-worker.js");
-require("./entry-html.js");
-require("./rollup.js");
+import gulp from "gulp";
+import env from "../env.cjs";
+import "./clean.js";
+import "./entry-html.js";
+import "./gather-static.js";
+import "./gen-icons-json.js";
+import "./rollup.js";
+import "./service-worker.js";
+import "./translations.js";
+import "./webpack.js";

 gulp.task(
  "develop-demo",
@@ -22,7 +19,7 @@ gulp.task(
    "translations-enable-merge-backend",
    gulp.parallel(
      "gen-icons-json",
-      "gen-index-demo-dev",
+      "gen-pages-demo-dev",
      "build-translations",
      "build-locale-data"
    ),
@@ -43,6 +40,6 @@ gulp.task(
    gulp.parallel("gen-icons-json", "build-translations", "build-locale-data"),
    "copy-static-demo",
    env.useRollup() ? "rollup-prod-demo" : "webpack-prod-demo",
-    "gen-index-demo-prod"
+    "gen-pages-demo-prod"
  )
 );
@@ -0,0 +1,180 @@
+import fs from "fs/promises";
+import gulp from "gulp";
+import path from "path";
+import mapStream from "map-stream";
+import transform from "gulp-json-transform";
+import { LokaliseApi } from "@lokalise/node-api";
+import JSZip from "jszip";
+
+const inDir = "translations";
+const inDirFrontend = `${inDir}/frontend`;
+const inDirBackend = `${inDir}/backend`;
+const srcMeta = "src/translations/translationMetadata.json";
+const encoding = "utf8";
+
+function hasHtml(data) {
+  return /<[a-z][\s\S]*>/i.test(data);
+}
+
+function recursiveCheckHasHtml(file, data, errors, recKey) {
+  Object.keys(data).forEach(function (key) {
+    if (typeof data[key] === "object") {
+      const nextRecKey = recKey ? `${recKey}.${key}` : key;
+      recursiveCheckHasHtml(file, data[key], errors, nextRecKey);
+    } else if (hasHtml(data[key])) {
+      errors.push(`HTML found in ${file.path} at key ${recKey}.${key}`);
+    }
+  });
+}
+
+function checkHtml() {
+  const errors = [];
+
+  return mapStream(function (file, cb) {
+    const content = file.contents;
+    let error;
+    if (content) {
+      if (hasHtml(String(content))) {
+        const data = JSON.parse(String(content));
+        recursiveCheckHasHtml(file, data, errors);
+        if (errors.length > 0) {
+          error = errors.join("\r\n");
+        }
+      }
+    }
+    cb(error, file);
+  });
+}
+
+function convertBackendTranslations(data, _file) {
+  const output = { component: {} };
+  if (!data.component) {
+    return output;
+  }
+  Object.keys(data.component).forEach((domain) => {
+    if (!("entity_component" in data.component[domain])) {
+      return;
+    }
+    output.component[domain] = { entity_component: {} };
+    Object.keys(data.component[domain].entity_component).forEach((key) => {
+      output.component[domain].entity_component[key] =
+        data.component[domain].entity_component[key];
+    });
+  });
+  return output;
+}
+
+gulp.task("convert-backend-translations", function () {
+  return gulp
+    .src([`${inDirBackend}/*.json`])
+    .pipe(transform((data, file) => convertBackendTranslations(data, file)))
+    .pipe(gulp.dest(inDirBackend));
+});
+
+gulp.task("check-translations-html", function () {
+  return gulp
+    .src([`${inDirFrontend}/*.json`, `${inDirBackend}/*.json`])
+    .pipe(checkHtml());
+});
+
+gulp.task("check-all-files-exist", async function () {
+  const file = await fs.readFile(srcMeta, { encoding });
+  const meta = JSON.parse(file);
+  const writings = [];
+  Object.keys(meta).forEach((lang) => {
+    writings.push(
+      fs.writeFile(`${inDirFrontend}/${lang}.json`, JSON.stringify({}), {
+        flag: "wx",
+      }),
+      fs.writeFile(`${inDirBackend}/${lang}.json`, JSON.stringify({}), {
+        flag: "wx",
+      })
+    );
+  });
+  await Promise.allSettled(writings);
+});
+
+const lokaliseProjects = {
+  backend: "130246255a974bd3b5e8a1.51616605",
+  frontend: "3420425759f6d6d241f598.13594006",
+};
+
+gulp.task("fetch-lokalise", async function () {
+  let apiKey;
+  try {
+    apiKey =
+      process.env.LOKALISE_TOKEN ||
+      (await fs.readFile(".lokalise_token", { encoding }));
+  } catch {
+    throw new Error(
+      "An Administrator Lokalise API token is required to download the latest set of translations. Place your token in a new file `.lokalise_token` in the repo root directory."
+    );
+  }
+  const lokaliseApi = new LokaliseApi({ apiKey });
+
+  const mkdirPromise = Promise.all([
+    fs.mkdir(inDirFrontend, { recursive: true }),
+    fs.mkdir(inDirBackend, { recursive: true }),
+  ]);
+
+  await Promise.all(
+    Object.entries(lokaliseProjects).map(([project, projectId]) =>
+      lokaliseApi
+        .files()
+        .download(projectId, {
+          format: "json",
+          original_filenames: false,
+          replace_breaks: false,
+          json_unescaped_slashes: true,
+          export_empty_as: "skip",
+        })
+        .then((download) => fetch(download.bundle_url))
+        .then((response) => {
+          if (response.status === 200 || response.status === 0) {
+            return response.arrayBuffer();
+          }
+          throw new Error(response.statusText);
+        })
+        .then(JSZip.loadAsync)
+        .then(async (contents) => {
+          await mkdirPromise;
+          return Promise.all(
+            Object.keys(contents.files).map(async (filename) => {
+              const file = contents.file(filename);
+              if (!file) {
+                // no file, probably a directory
+                return Promise.resolve();
+              }
+              return file
+                .async("nodebuffer")
+                .then((content) =>
+                  fs.writeFile(
+                    path.join(
+                      inDir,
+                      project,
+                      filename.split("/").splice(-1)[0]
+                    ),
+                    content,
+                    { flag: "w", encoding }
+                  )
+                );
+            })
+          );
+        })
+        .catch((err) => {
+          console.error(err);
+          throw err;
+        })
+    )
+  );
+});
+
+gulp.task(
+  "download-translations",
+  gulp.series(
+    "fetch-lokalise",
+    "convert-backend-translations",
+    "check-translations-html",
+    "check-all-files-exist"
+  )
+);
@@ -1,69 +0,0 @@
-const gulp = require("gulp");
-const fs = require("fs/promises");
-const mapStream = require("map-stream");
-
-const inDirFrontend = "translations/frontend";
-const inDirBackend = "translations/backend";
-const srcMeta = "src/translations/translationMetadata.json";
-const encoding = "utf8";
-
-function hasHtml(data) {
-  return /<[a-z][\s\S]*>/i.test(data);
-}
-
-function recursiveCheckHasHtml(file, data, errors, recKey) {
-  Object.keys(data).forEach(function (key) {
-    if (typeof data[key] === "object") {
-      const nextRecKey = recKey ? `${recKey}.${key}` : key;
-      recursiveCheckHasHtml(file, data[key], errors, nextRecKey);
-    } else if (hasHtml(data[key])) {
-      errors.push(`HTML found in ${file.path} at key ${recKey}.${key}`);
-    }
-  });
-}
-
-function checkHtml() {
-  const errors = [];
-
-  return mapStream(function (file, cb) {
-    const content = file.contents;
-    let error;
-    if (content) {
-      if (hasHtml(String(content))) {
-        const data = JSON.parse(String(content));
-        recursiveCheckHasHtml(file, data, errors);
-        if (errors.length > 0) {
-          error = errors.join("\r\n");
-        }
-      }
-    }
-    cb(error, file);
-  });
-}
-
-// Backend translations do not currently pass HTML check so are excluded here for now
-gulp.task("check-translations-html", function () {
-  return gulp.src([`${inDirFrontend}/*.json`]).pipe(checkHtml());
-});
-
-gulp.task("check-all-files-exist", async function () {
-  const file = await fs.readFile(srcMeta, { encoding });
-  const meta = JSON.parse(file);
-  const writings = [];
-  Object.keys(meta).forEach((lang) => {
-    writings.push(
-      fs.writeFile(`${inDirFrontend}/${lang}.json`, JSON.stringify({}), {
-        flag: "wx",
-      }),
-      fs.writeFile(`${inDirBackend}/${lang}.json`, JSON.stringify({}), {
-        flag: "wx",
-      })
-    );
-  });
-  await Promise.allSettled(writings);
-});
-
-gulp.task(
-  "check-downloaded-translations",
-  gulp.series("check-translations-html", "check-all-files-exist")
-);
@@ -1,344 +1,233 @@
 // Tasks to generate entry HTML
-const gulp = require("gulp");
-const fs = require("fs-extra");
-const path = require("path");
-const template = require("lodash.template");
-const minify = require("html-minifier").minify;
-const paths = require("../paths.js");
-const env = require("../env.js");

-const templatePath = (tpl) =>
-  path.resolve(paths.polymer_dir, "src/html/", `${tpl}.html.template`);
+import fs from "fs-extra";
+import gulp from "gulp";
+import { minify } from "html-minifier-terser";
+import template from "lodash.template";
+import path from "path";
+import { htmlMinifierOptions, terserOptions } from "../bundle.cjs";
+import env from "../env.cjs";
+import paths from "../paths.cjs";

-const readFile = (pth) => fs.readFileSync(pth).toString();
-
-const renderTemplate = (pth, data = {}, pathFunc = templatePath) => {
-  const compiled = template(readFile(pathFunc(pth)));
+const renderTemplate = (templateFile, data = {}) => {
+  const compiled = template(
+    fs.readFileSync(templateFile, { encoding: "utf-8" })
+  );
  return compiled({
    ...data,
    useRollup: env.useRollup(),
    useWDS: env.useWDS(),
-    renderTemplate,
+    // Resolve any child/nested templates relative to the parent and pass the same data
+    renderTemplate: (childTemplate) =>
+      renderTemplate(
+        path.resolve(path.dirname(templateFile), childTemplate),
+        data
+      ),
  });
 };

-const renderDemoTemplate = (pth, data = {}) =>
-  renderTemplate(pth, data, (tpl) =>
-    path.resolve(paths.demo_dir, "src/html/", `${tpl}.html.template`)
+const WRAP_TAGS = { ".js": "script", ".css": "style" };
+
+const minifyHtml = (content, ext) => {
+  const wrapTag = WRAP_TAGS[ext] || "";
+  const begTag = wrapTag && `<${wrapTag}>`;
+  const endTag = wrapTag && `</${wrapTag}>`;
+  return minify(begTag + content + endTag, {
+    ...htmlMinifierOptions,
+    conservativeCollapse: false,
+    minifyJS: terserOptions({
+      latestBuild: false, // Shared scripts should be ES5
+      isTestBuild: true, // Don't need source maps
+    }),
+  }).then((wrapped) =>
+    wrapTag ? wrapped.slice(begTag.length, -endTag.length) : wrapped
  );
+};

-const renderCastTemplate = (pth, data = {}) =>
-  renderTemplate(pth, data, (tpl) =>
-    path.resolve(paths.cast_dir, "src/html/", `${tpl}.html.template`)
-  );
+// Function to generate a dev task for each project's configuration
+// Note Currently WDS paths are hard-coded to only work for app
+const genPagesDevTask =
+  (
+    pageEntries,
+    inputRoot,
+    outputRoot,
+    useWDS = false,
+    inputSub = "src/html",
+    publicRoot = ""
+  ) =>
+  async () => {
+    for (const [page, entries] of Object.entries(pageEntries)) {
+      const content = renderTemplate(
+        path.resolve(inputRoot, inputSub, `${page}.template`),
+        {
+          latestEntryJS: entries.map((entry) =>
+            useWDS
+              ? `http://localhost:8000/src/entrypoints/${entry}.ts`
+              : `${publicRoot}/frontend_latest/${entry}.js`
+          ),
+          es5EntryJS: entries.map(
+            (entry) => `${publicRoot}/frontend_es5/${entry}.js`
+          ),
+          latestCustomPanelJS: useWDS
+            ? "http://localhost:8000/src/entrypoints/custom-panel.ts"
+            : `${publicRoot}/frontend_latest/custom-panel.js`,
+          es5CustomPanelJS: `${publicRoot}/frontend_es5/custom-panel.js`,
+        }
+      );
+      fs.outputFileSync(path.resolve(outputRoot, page), content);
+    }
+  };

-const renderGalleryTemplate = (pth, data = {}) =>
-  renderTemplate(pth, data, (tpl) =>
-    path.resolve(paths.gallery_dir, "src/html/", `${tpl}.html.template`)
-  );
-
-const minifyHtml = (content) =>
-  minify(content, {
-    collapseWhitespace: true,
-    minifyJS: true,
-    minifyCSS: true,
-    removeComments: true,
-  });
-
-const PAGES = ["onboarding", "authorize"];
-
-gulp.task("gen-pages-dev", (done) => {
-  for (const page of PAGES) {
-    const content = renderTemplate(page, {
-      latestPageJS: `/frontend_latest/${page}.js`,
-
-      es5PageJS: `/frontend_es5/${page}.js`,
-    });
-
-    fs.outputFileSync(
-      path.resolve(paths.app_output_root, `${page}.html`),
-      content
+// Same as previous but for production builds
+// (includes minification and hashed file names from manifest)
+const genPagesProdTask =
+  (
+    pageEntries,
+    inputRoot,
+    outputRoot,
+    outputLatest,
+    outputES5,
+    inputSub = "src/html"
+  ) =>
+  async () => {
+    const latestManifest = fs.readJsonSync(
+      path.resolve(outputLatest, "manifest.json")
    );
-  }
-  done();
-});
+    const es5Manifest = outputES5
+      ? fs.readJsonSync(path.resolve(outputES5, "manifest.json"))
+      : {};
+    const minifiedHTML = [];
+    for (const [page, entries] of Object.entries(pageEntries)) {
+      const content = renderTemplate(
+        path.resolve(inputRoot, inputSub, `${page}.template`),
+        {
+          latestEntryJS: entries.map((entry) => latestManifest[`${entry}.js`]),
+          es5EntryJS: entries.map((entry) => es5Manifest[`${entry}.js`]),
+          latestCustomPanelJS: latestManifest["custom-panel.js"],
+          es5CustomPanelJS: es5Manifest["custom-panel.js"],
+        }
+      );
+      minifiedHTML.push(
+        minifyHtml(content, path.extname(page)).then((minified) =>
+          fs.outputFileSync(path.resolve(outputRoot, page), minified)
+        )
+      );
+    }
+    await Promise.all(minifiedHTML);
+  };

-gulp.task("gen-pages-prod", (done) => {
-  const latestManifest = require(path.resolve(
+// Map HTML pages to their required entrypoints
+const APP_PAGE_ENTRIES = {
+  "authorize.html": ["authorize"],
+  "onboarding.html": ["onboarding"],
+  "index.html": ["core", "app"],
+};
+
+gulp.task(
+  "gen-pages-app-dev",
+  genPagesDevTask(
+    APP_PAGE_ENTRIES,
+    paths.polymer_dir,
+    paths.app_output_root,
+    env.useWDS()
+  )
+);
+
+gulp.task(
+  "gen-pages-app-prod",
+  genPagesProdTask(
+    APP_PAGE_ENTRIES,
+    paths.polymer_dir,
+    paths.app_output_root,
    paths.app_output_latest,
-    "manifest.json"
-  ));
-  const es5Manifest = require(path.resolve(
-    paths.app_output_es5,
-    "manifest.json"
-  ));
+    paths.app_output_es5
+  )
+);

-  for (const page of PAGES) {
-    const content = renderTemplate(page, {
-      latestPageJS: latestManifest[`${page}.js`],
+const CAST_PAGE_ENTRIES = {
+  "faq.html": ["launcher"],
+  "index.html": ["launcher"],
+  "media.html": ["media"],
+  "receiver.html": ["receiver"],
+};

-      es5PageJS: es5Manifest[`${page}.js`],
-    });
+gulp.task(
+  "gen-pages-cast-dev",
+  genPagesDevTask(CAST_PAGE_ENTRIES, paths.cast_dir, paths.cast_output_root)
+);

-    fs.outputFileSync(
-      path.resolve(paths.app_output_root, `${page}.html`),
-      minifyHtml(content)
-    );
-  }
-  done();
-});
-
-gulp.task("gen-index-app-dev", (done) => {
-  let latestAppJS;
-  let latestCoreJS;
-  let latestCustomPanelJS;
-
-  if (env.useWDS()) {
-    latestAppJS = "http://localhost:8000/src/entrypoints/app.ts";
-    latestCoreJS = "http://localhost:8000/src/entrypoints/core.ts";
-    latestCustomPanelJS =
-      "http://localhost:8000/src/entrypoints/custom-panel.ts";
-  } else {
-    latestAppJS = "/frontend_latest/app.js";
-    latestCoreJS = "/frontend_latest/core.js";
-    latestCustomPanelJS = "/frontend_latest/custom-panel.js";
-  }
-
-  const content = renderTemplate("index", {
-    latestAppJS,
-    latestCoreJS,
-    latestCustomPanelJS,
-
-    es5AppJS: "/frontend_es5/app.js",
-    es5CoreJS: "/frontend_es5/core.js",
-    es5CustomPanelJS: "/frontend_es5/custom-panel.js",
-  }).replace(/#THEMEC/g, "{{ theme_color }}");
-
-  fs.outputFileSync(path.resolve(paths.app_output_root, "index.html"), content);
-  done();
-});
-
-gulp.task("gen-index-app-prod", (done) => {
-  const latestManifest = require(path.resolve(
-    paths.app_output_latest,
-    "manifest.json"
-  ));
-  const es5Manifest = require(path.resolve(
-    paths.app_output_es5,
-    "manifest.json"
-  ));
-  const content = renderTemplate("index", {
-    latestAppJS: latestManifest["app.js"],
-    latestCoreJS: latestManifest["core.js"],
-    latestCustomPanelJS: latestManifest["custom-panel.js"],
-
-    es5AppJS: es5Manifest["app.js"],
-    es5CoreJS: es5Manifest["core.js"],
-    es5CustomPanelJS: es5Manifest["custom-panel.js"],
-  });
-  const minified = minifyHtml(content).replace(/#THEMEC/g, "{{ theme_color }}");
-
-  fs.outputFileSync(
-    path.resolve(paths.app_output_root, "index.html"),
-    minified
-  );
-  done();
-});
-
-gulp.task("gen-index-cast-dev", (done) => {
-  const contentReceiver = renderCastTemplate("receiver", {
-    latestReceiverJS: "/frontend_latest/receiver.js",
-  });
-  fs.outputFileSync(
-    path.resolve(paths.cast_output_root, "receiver.html"),
-    contentReceiver
-  );
-
-  const contentMedia = renderCastTemplate("media", {
-    latestMediaJS: "/frontend_latest/media.js",
-    es5MediaJS: "/frontend_es5/media.js",
-  });
-  fs.outputFileSync(
-    path.resolve(paths.cast_output_root, "media.html"),
-    contentMedia
-  );
-
-  const contentFAQ = renderCastTemplate("launcher-faq", {
-    latestLauncherJS: "/frontend_latest/launcher.js",
-    es5LauncherJS: "/frontend_es5/launcher.js",
-  });
-  fs.outputFileSync(
-    path.resolve(paths.cast_output_root, "faq.html"),
-    contentFAQ
-  );
-
-  const contentLauncher = renderCastTemplate("launcher", {
-    latestLauncherJS: "/frontend_latest/launcher.js",
-    es5LauncherJS: "/frontend_es5/launcher.js",
-  });
-  fs.outputFileSync(
-    path.resolve(paths.cast_output_root, "index.html"),
-    contentLauncher
-  );
-  done();
-});
-
-gulp.task("gen-index-cast-prod", (done) => {
-  const latestManifest = require(path.resolve(
+gulp.task(
+  "gen-pages-cast-prod",
+  genPagesProdTask(
+    CAST_PAGE_ENTRIES,
+    paths.cast_dir,
+    paths.cast_output_root,
    paths.cast_output_latest,
-    "manifest.json"
-  ));
-  const es5Manifest = require(path.resolve(
-    paths.cast_output_es5,
-    "manifest.json"
-  ));
+    paths.cast_output_es5
+  )
+);

-  const contentReceiver = renderCastTemplate("receiver", {
-    latestReceiverJS: latestManifest["receiver.js"],
-  });
-  fs.outputFileSync(
-    path.resolve(paths.cast_output_root, "receiver.html"),
-    contentReceiver
-  );
+const DEMO_PAGE_ENTRIES = { "index.html": ["main"] };

-  const contentMedia = renderCastTemplate("media", {
-    latestMediaJS: latestManifest["media.js"],
-    es5MediaJS: es5Manifest["media.js"],
-  });
-  fs.outputFileSync(
-    path.resolve(paths.cast_output_root, "media.html"),
-    contentMedia
-  );
+gulp.task(
+  "gen-pages-demo-dev",
+  genPagesDevTask(DEMO_PAGE_ENTRIES, paths.demo_dir, paths.demo_output_root)
+);

-  const contentFAQ = renderCastTemplate("launcher-faq", {
-    latestLauncherJS: latestManifest["launcher.js"],
-    es5LauncherJS: es5Manifest["launcher.js"],
-  });
-  fs.outputFileSync(
-    path.resolve(paths.cast_output_root, "faq.html"),
-    contentFAQ
-  );
-
-  const contentLauncher = renderCastTemplate("launcher", {
-    latestLauncherJS: latestManifest["launcher.js"],
-    es5LauncherJS: es5Manifest["launcher.js"],
-  });
-  fs.outputFileSync(
-    path.resolve(paths.cast_output_root, "index.html"),
-    contentLauncher
-  );
-  done();
-});
-
-gulp.task("gen-index-demo-dev", (done) => {
-  const content = renderDemoTemplate("index", {
-    latestDemoJS: "/frontend_latest/main.js",
-
-    es5DemoJS: "/frontend_es5/main.js",
-  });
-
-  fs.outputFileSync(
-    path.resolve(paths.demo_output_root, "index.html"),
-    content
-  );
-  done();
-});
-
-gulp.task("gen-index-demo-prod", (done) => {
-  const latestManifest = require(path.resolve(
+gulp.task(
+  "gen-pages-demo-prod",
+  genPagesProdTask(
+    DEMO_PAGE_ENTRIES,
+    paths.demo_dir,
+    paths.demo_output_root,
    paths.demo_output_latest,
-    "manifest.json"
-  ));
-  const es5Manifest = require(path.resolve(
-    paths.demo_output_es5,
-    "manifest.json"
-  ));
-  const content = renderDemoTemplate("index", {
-    latestDemoJS: latestManifest["main.js"],
+    paths.demo_output_es5
+  )
+);

-    es5DemoJS: es5Manifest["main.js"],
-  });
-  const minified = minifyHtml(content);
+const GALLERY_PAGE_ENTRIES = { "index.html": ["entrypoint"] };

-  fs.outputFileSync(
-    path.resolve(paths.demo_output_root, "index.html"),
-    minified
-  );
-  done();
-});
+gulp.task(
+  "gen-pages-gallery-dev",
+  genPagesDevTask(
+    GALLERY_PAGE_ENTRIES,
+    paths.gallery_dir,
+    paths.gallery_output_root
+  )
+);

-gulp.task("gen-index-gallery-dev", (done) => {
-  const content = renderGalleryTemplate("index", {
-    latestGalleryJS: "./frontend_latest/entrypoint.js",
-  });
+gulp.task(
+  "gen-pages-gallery-prod",
+  genPagesProdTask(
+    GALLERY_PAGE_ENTRIES,
+    paths.gallery_dir,
+    paths.gallery_output_root,
+    paths.gallery_output_latest
+  )
+);

-  fs.outputFileSync(
-    path.resolve(paths.gallery_output_root, "index.html"),
-    content
-  );
-  done();
-});
+const HASSIO_PAGE_ENTRIES = { "entrypoint.js": ["entrypoint"] };

-gulp.task("gen-index-gallery-prod", (done) => {
-  const latestManifest = require(path.resolve(
-    paths.gallery_output_latest,
-    "manifest.json"
-  ));
-  const content = renderGalleryTemplate("index", {
-    latestGalleryJS: latestManifest["entrypoint.js"],
-  });
-  const minified = minifyHtml(content);
+gulp.task(
+  "gen-pages-hassio-dev",
+  genPagesDevTask(
+    HASSIO_PAGE_ENTRIES,
+    paths.hassio_dir,
+    paths.hassio_output_root,
+    undefined,
+    "src",
+    paths.hassio_publicPath
+  )
+);

-  fs.outputFileSync(
-    path.resolve(paths.gallery_output_root, "index.html"),
-    minified
-  );
-  done();
-});
-
-gulp.task("gen-index-hassio-dev", async () => {
-  writeHassioEntrypoint(
-    `${paths.hassio_publicPath}/frontend_latest/entrypoint.js`,
-    `${paths.hassio_publicPath}/frontend_es5/entrypoint.js`
-  );
-});
-
-gulp.task("gen-index-hassio-prod", async () => {
-  const latestManifest = require(path.resolve(
+gulp.task(
+  "gen-pages-hassio-prod",
+  genPagesProdTask(
+    HASSIO_PAGE_ENTRIES,
+    paths.hassio_dir,
+    paths.hassio_output_root,
    paths.hassio_output_latest,
-    "manifest.json"
-  ));
-  const es5Manifest = require(path.resolve(
    paths.hassio_output_es5,
-    "manifest.json"
-  ));
-  writeHassioEntrypoint(
-    latestManifest["entrypoint.js"],
-    es5Manifest["entrypoint.js"]
-  );
-});
-
-function writeHassioEntrypoint(latestEntrypoint, es5Entrypoint) {
-  fs.mkdirSync(paths.hassio_output_root, { recursive: true });
-  // Safari 12 and below does not have a compliant ES2015 implementation of template literals, so we ship ES5
-  fs.writeFileSync(
-    path.resolve(paths.hassio_output_root, "entrypoint.js"),
-    `
-function loadES5() {
-  var el = document.createElement('script');
-  el.src = '${es5Entrypoint}';
-  document.body.appendChild(el);
-}
-if (/.*Version\\/(?:11|12)(?:\\.\\d+)*.*Safari\\//.test(navigator.userAgent)) {
-    loadES5();
-} else {
-  try {
-    new Function("import('${latestEntrypoint}')")();
-  } catch (err) {
-    loadES5();
-  }
-}
-  `,
-    { encoding: "utf-8" }
-  );
-}
+    "src"
+  )
+);
@@ -1,14 +1,15 @@
 // Task to download the latest Lokalise translations from the nightly workflow artifacts

-const del = import("del");
-const fs = require("fs/promises");
-const path = require("path");
-const process = require("process");
-const gulp = require("gulp");
-const jszip = require("jszip");
-const tar = require("tar");
-const { Octokit } = require("@octokit/rest");
-const { createOAuthDeviceAuth } = require("@octokit/auth-oauth-device");
+import { createOAuthDeviceAuth } from "@octokit/auth-oauth-device";
+import { retry } from "@octokit/plugin-retry";
+import { Octokit } from "@octokit/rest";
+import { deleteAsync } from "del";
+import { mkdir, readFile, writeFile } from "fs/promises";
+import gulp from "gulp";
+import jszip from "jszip";
+import path from "path";
+import process from "process";
+import tar from "tar";

 const MAX_AGE = 24; // hours
 const OWNER = "home-assistant";
@@ -37,7 +38,7 @@ gulp.task("fetch-nightly-translations", async function () {
  // and stop if they are not old enough
  let currentArtifact;
  try {
-    currentArtifact = JSON.parse(await fs.readFile(ARTIFACT_FILE, "utf-8"));
+    currentArtifact = JSON.parse(await readFile(ARTIFACT_FILE, "utf-8"));
    const currentAge =
      (Date.now() - Date.parse(currentArtifact.created_at)) / 3600000;
    if (currentAge < MAX_AGE) {
@@ -52,7 +53,7 @@ gulp.task("fetch-nightly-translations", async function () {
  }

  // To store file writing promises
-  const createExtractDir = fs.mkdir(EXTRACT_DIR, { recursive: true });
+  const createExtractDir = mkdir(EXTRACT_DIR, { recursive: true });
  const writings = [];

  // Authenticate to GitHub using GitHub action token if it exists,
@@ -62,7 +63,7 @@ gulp.task("fetch-nightly-translations", async function () {
    tokenAuth = { token: process.env.GITHUB_TOKEN };
  } else {
    try {
-      tokenAuth = JSON.parse(await fs.readFile(TOKEN_FILE, "utf-8"));
+      tokenAuth = JSON.parse(await readFile(TOKEN_FILE, "utf-8"));
    } catch {
      if (!allowTokenSetup) {
        console.log("No token found so  build wil continue with English only");
@@ -87,7 +88,7 @@ gulp.task("fetch-nightly-translations", async function () {
      tokenAuth = await auth({ type: "oauth" });
      writings.push(
        createExtractDir.then(
-          fs.writeFile(TOKEN_FILE, JSON.stringify(tokenAuth, null, 2))
+          writeFile(TOKEN_FILE, JSON.stringify(tokenAuth, null, 2))
        )
      );
    }
@@ -95,7 +96,7 @@ gulp.task("fetch-nightly-translations", async function () {

  // Authenticate with token and request workflow runs from GitHub
  console.log("Fetching new translations...");
-  const octokit = new Octokit({
+  const octokit = new (Octokit.plugin(retry))({
    userAgent: "Fetch Nightly Translations",
    auth: tokenAuth.token,
  });
@@ -131,17 +132,13 @@ gulp.task("fetch-nightly-translations", async function () {
  }
  writings.push(
    createExtractDir.then(
-      fs.writeFile(ARTIFACT_FILE, JSON.stringify(latestArtifact, null, 2))
+      writeFile(ARTIFACT_FILE, JSON.stringify(latestArtifact, null, 2))
    )
  );

  // Remove the current translations
  const deleteCurrent = Promise.all(writings).then(
-    (await del).deleteAsync([
-      `${EXTRACT_DIR}/*`,
-      `!${ARTIFACT_FILE}`,
-      `!${TOKEN_FILE}`,
-    ])
+    deleteAsync([`${EXTRACT_DIR}/*`, `!${ARTIFACT_FILE}`, `!${TOKEN_FILE}`])
  );

  // Get the download URL and follow the redirect to download (stored as ArrayBuffer)
@@ -1,26 +1,23 @@
-// Run demo develop mode
-const gulp = require("gulp");
-const fs = require("fs");
-const path = require("path");
-const { marked } = require("marked");
-const glob = require("glob");
-const yaml = require("js-yaml");
-
-const env = require("../env");
-const paths = require("../paths");
-
-require("./clean.js");
-require("./translations.js");
-require("./gen-icons-json.js");
-require("./gather-static.js");
-require("./webpack.js");
-require("./service-worker.js");
-require("./entry-html.js");
-require("./rollup.js");
+import fs from "fs";
+import { glob } from "glob";
+import gulp from "gulp";
+import yaml from "js-yaml";
+import { marked } from "marked";
+import path from "path";
+import env from "../env.cjs";
+import paths from "../paths.cjs";
+import "./clean.js";
+import "./entry-html.js";
+import "./gather-static.js";
+import "./gen-icons-json.js";
+import "./rollup.js";
+import "./service-worker.js";
+import "./translations.js";
+import "./webpack.js";

 gulp.task("gather-gallery-pages", async function gatherPages() {
  const pageDir = path.resolve(paths.gallery_dir, "src/pages");
-  const files = glob.sync(path.resolve(pageDir, "**/*"));
+  const files = await glob(path.resolve(pageDir, "**/*"));

  const galleryBuild = path.resolve(paths.gallery_dir, "build");
  fs.mkdirSync(galleryBuild, { recursive: true });
@@ -89,9 +86,7 @@ gulp.task("gather-gallery-pages", async function gatherPages() {

  // Generate sidebar
  const sidebarPath = path.resolve(paths.gallery_dir, "sidebar.js");
-  // To make watch work during development
-  delete require.cache[sidebarPath];
-  const sidebar = require(sidebarPath);
+  const sidebar = (await import(sidebarPath)).default;

  const pagesToProcess = {};
  for (const key of processed) {
@@ -161,7 +156,7 @@ gulp.task(
      "gather-gallery-pages"
    ),
    "copy-static-gallery",
-    "gen-index-gallery-dev",
+    "gen-pages-gallery-dev",
    gulp.parallel(
      env.useRollup()
        ? "rollup-dev-server-gallery"
@@ -195,6 +190,6 @@ gulp.task(
    ),
    "copy-static-gallery",
    env.useRollup() ? "rollup-prod-gallery" : "webpack-prod-gallery",
-    "gen-index-gallery-prod"
+    "gen-pages-gallery-prod"
  )
 );
@@ -1,9 +1,10 @@
 // Gulp task to gather all static files.

-const gulp = require("gulp");
-const path = require("path");
-const fs = require("fs-extra");
-const paths = require("../paths");
+import fs from "fs-extra";
+import gulp from "gulp";
+import path from "path";
+import paths from "../paths.cjs";
+import env from "../env.cjs";

 const npmPath = (...parts) =>
  path.resolve(paths.polymer_dir, "node_modules", ...parts);
@@ -62,6 +63,9 @@ function copyPolyfills(staticDir) {
 }

 function copyLoaderJS(staticDir) {
+  if (!env.useRollup()) {
+    return;
+  }
  const staticPath = genStaticPath(staticDir);
  copyFileDir(npmPath("systemjs/dist/s.min.js"), staticPath("js"));
  copyFileDir(npmPath("systemjs/dist/s.min.js.map"), staticPath("js"));
@@ -111,9 +115,10 @@ gulp.task("copy-translations-supervisor", async () => {
  copyTranslations(staticDir);
 });

-gulp.task("copy-locale-data-supervisor", async () => {
+gulp.task("copy-static-supervisor", async () => {
  const staticDir = paths.hassio_output_static;
  copyLocaleData(staticDir);
+  copyFonts(staticDir);
 });

 gulp.task("copy-static-app", async () => {
@@ -1,17 +1,15 @@
-const gulp = require("gulp");
-const path = require("path");
-const fs = require("fs");
-const hash = require("object-hash");
+import fs from "fs";
+import gulp from "gulp";
+import hash from "object-hash";
+import path from "path";
+import paths from "../paths.cjs";

-const ICON_PACKAGE_PATH = path.resolve(
-  __dirname,
-  "../../node_modules/@mdi/svg/"
-);
+const ICON_PACKAGE_PATH = path.resolve("node_modules/@mdi/svg/");
 const META_PATH = path.resolve(ICON_PACKAGE_PATH, "meta.json");
 const PACKAGE_PATH = path.resolve(ICON_PACKAGE_PATH, "package.json");
 const ICON_PATH = path.resolve(ICON_PACKAGE_PATH, "svg");
-const OUTPUT_DIR = path.resolve(__dirname, "../../build/mdi");
-const REMOVED_ICONS_PATH = path.resolve(__dirname, "../removedIcons.json");
+const OUTPUT_DIR = path.resolve(paths.build_dir, "mdi");
+const REMOVED_ICONS_PATH = new URL("../removedIcons.json", import.meta.url);

 const encoding = "utf8";

@@ -134,11 +132,11 @@ gulp.task("gen-icons-json", (done) => {
  });

  const file = fs.readFileSync(PACKAGE_PATH, { encoding });
-  const package = JSON.parse(file);
+  const packageMeta = JSON.parse(file);

  fs.writeFileSync(
    path.resolve(OUTPUT_DIR, "iconMetadata.json"),
-    JSON.stringify({ version: package.version, parts })
+    JSON.stringify({ version: packageMeta.version, parts })
  );

  fs.writeFileSync(
@@ -1,15 +1,13 @@
-const gulp = require("gulp");
-
-const env = require("../env");
-
-require("./clean.js");
-require("./gen-icons-json.js");
-require("./webpack.js");
-require("./compress.js");
-require("./rollup.js");
-require("./gather-static.js");
-require("./translations.js");
-require("./gen-icons-json.js");
+import gulp from "gulp";
+import env from "../env.cjs";
+import "./clean.js";
+import "./compress.js";
+import "./entry-html.js";
+import "./gather-static.js";
+import "./gen-icons-json.js";
+import "./rollup.js";
+import "./translations.js";
+import "./webpack.js";

 gulp.task(
  "develop-hassio",
@@ -19,11 +17,11 @@ gulp.task(
    },
    "clean-hassio",
    "gen-dummy-icons-json",
-    "gen-index-hassio-dev",
+    "gen-pages-hassio-dev",
    "build-supervisor-translations",
    "copy-translations-supervisor",
    "build-locale-data",
-    "copy-locale-data-supervisor",
+    "copy-static-supervisor",
    env.useRollup() ? "rollup-watch-hassio" : "webpack-watch-hassio"
  )
 );
@@ -39,10 +37,10 @@ gulp.task(
    "build-supervisor-translations",
    "copy-translations-supervisor",
    "build-locale-data",
-    "copy-locale-data-supervisor",
+    "copy-static-supervisor",
    env.useRollup() ? "rollup-prod-hassio" : "webpack-prod-hassio",
-    "gen-index-hassio-prod",
+    "gen-pages-hassio-prod",
    ...// Don't compress running tests
-    (env.isTest() ? [] : ["compress-hassio"])
+    (env.isTestBuild() ? [] : ["compress-hassio"])
  )
 );
@@ -1,72 +1,86 @@
-const del = import("del");
-const path = require("path");
-const gulp = require("gulp");
-const fs = require("fs");
-const paths = require("../paths");
+import { deleteSync } from "del";
+import { mkdir, readFile, writeFile } from "fs/promises";
+import gulp from "gulp";
+import { join, resolve } from "node:path";
+import paths from "../paths.cjs";

-const outDir = "build/locale-data";
+const formatjsDir = join(paths.polymer_dir, "node_modules", "@formatjs");
+const outDir = join(paths.build_dir, "locale-data");

-gulp.task("clean-locale-data", async () => (await del).deleteSync([outDir]));
-
-gulp.task("ensure-locale-data-build-dir", (done) => {
-  if (!fs.existsSync(outDir)) {
-    fs.mkdirSync(outDir, { recursive: true });
-  }
-  done();
-});
-
-const modules = {
-  "intl-relativetimeformat": "RelativeTimeFormat",
+const INTL_POLYFILLS = {
  "intl-datetimeformat": "DateTimeFormat",
+  "intl-displaynames": "DisplayNames",
+  "intl-listformat": "ListFormat",
  "intl-numberformat": "NumberFormat",
+  "intl-relativetimeformat": "RelativeTimeFormat",
 };

-gulp.task("create-locale-data", (done) => {
+const convertToJSON = async (
+  pkg,
+  lang,
+  subDir = "locale-data",
+  addFunc = "__addLocaleData",
+  skipMissing = true
+) => {
+  let localeData;
+  try {
+    localeData = await readFile(
+      join(formatjsDir, pkg, subDir, `${lang}.js`),
+      "utf-8"
+    );
+  } catch (e) {
+    // Ignore if language is missing (i.e. not supported by @formatjs)
+    if (e.code === "ENOENT" && skipMissing) {
+      console.warn(`Skipped missing data for language ${lang} from ${pkg}`);
+      return;
+    }
+    throw e;
+  }
+  // Convert to JSON
+  const obj = INTL_POLYFILLS[pkg];
+  const dataRegex = new RegExp(
+    `Intl\\.${obj}\\.${addFunc}\\((?<data>.*)\\)`,
+    "s"
+  );
+  localeData = localeData.match(dataRegex)?.groups?.data;
+  if (!localeData) {
+    throw Error(`Failed to extract data for language ${lang} from ${pkg}`);
+  }
+  // Parse to validate JSON, then stringify to minify
+  localeData = JSON.stringify(JSON.parse(localeData));
+  await writeFile(join(outDir, `${pkg}/${lang}.json`), localeData);
+};
+
+gulp.task("clean-locale-data", async () => deleteSync([outDir]));
+
+gulp.task("create-locale-data", async () => {
  const translationMeta = JSON.parse(
-    fs.readFileSync(
-      path.join(paths.translations_src, "translationMetadata.json")
+    await readFile(
+      resolve(paths.translations_src, "translationMetadata.json"),
+      "utf-8"
    )
  );
-  Object.entries(modules).forEach(([module, className]) => {
-    Object.keys(translationMeta).forEach((lang) => {
-      try {
-        const localeData = String(
-          fs.readFileSync(
-            require.resolve(`@formatjs/${module}/locale-data/${lang}.js`)
-          )
-        )
-          .replace(
-            new RegExp(
-              `\\/\\*\\s*@generated\\s*\\*\\/\\s*\\/\\/\\s*prettier-ignore\\s*if\\s*\\(Intl\\.${className}\\s*&&\\s*typeof\\s*Intl\\.${className}\\.__addLocaleData\\s*===\\s*'function'\\)\\s*{\\s*Intl\\.${className}\\.__addLocaleData\\(`,
-              "im"
-            ),
-            ""
-          )
-          .replace(/\)\s*}/im, "");
-        // make sure we have valid JSON
-        JSON.parse(localeData);
-        if (!fs.existsSync(path.join(outDir, module))) {
-          fs.mkdirSync(path.join(outDir, module), { recursive: true });
-        }
-        fs.writeFileSync(
-          path.join(outDir, `${module}/${lang}.json`),
-          localeData
-        );
-      } catch (e) {
-        if (e.code !== "MODULE_NOT_FOUND") {
-          throw e;
-        }
-      }
-    });
-    done();
-  });
+  const conversions = [];
+  for (const pkg of Object.keys(INTL_POLYFILLS)) {
+    // eslint-disable-next-line no-await-in-loop
+    await mkdir(join(outDir, pkg), { recursive: true });
+    for (const lang of Object.keys(translationMeta)) {
+      conversions.push(convertToJSON(pkg, lang));
+    }
+  }
+  conversions.push(
+    convertToJSON(
+      "intl-datetimeformat",
+      "add-all-tz",
+      ".",
+      "__addTZData",
+      false
+    )
+  );
+  await Promise.all(conversions);
 });

 gulp.task(
  "build-locale-data",
-  gulp.series(
-    "clean-locale-data",
-    "ensure-locale-data-build-dir",
-    "create-locale-data"
-  )
+  gulp.series("clean-locale-data", "create-locale-data")
 );
@@ -1,13 +1,14 @@
 // Tasks to run Rollup
-const path = require("path");
-const gulp = require("gulp");
-const rollup = require("rollup");
-const handler = require("serve-handler");
-const http = require("http");
-const log = require("fancy-log");
-const open = require("open");
-const rollupConfig = require("../rollup");
-const paths = require("../paths");
+
+import log from "fancy-log";
+import gulp from "gulp";
+import http from "http";
+import open from "open";
+import path from "path";
+import { rollup } from "rollup";
+import handler from "serve-handler";
+import paths from "../paths.cjs";
+import rollupConfig from "../rollup.cjs";

 const bothBuilds = (createConfigFunc, params) =>
  gulp.series(
@@ -46,7 +47,7 @@ function createServer(serveOptions) {
  );
 }

-function watchRollup(createConfig, extraWatchSrc = [], serveOptions) {
+function watchRollup(createConfig, extraWatchSrc = [], serveOptions = null) {
  const { inputOptions, outputOptions } = createConfig({
    isProdBuild: false,
    latestBuild: true,
@@ -1,11 +1,12 @@
 // Generate service worker.
 // Based on manifest, create a file with the content as service_worker.js
-const gulp = require("gulp");
-const path = require("path");
-const fs = require("fs-extra");
-const workboxBuild = require("workbox-build");
-const sourceMapUrl = require("source-map-url");
-const paths = require("../paths.js");
+
+import fs from "fs-extra";
+import gulp from "gulp";
+import path from "path";
+import sourceMapUrl from "source-map-url";
+import workboxBuild from "workbox-build";
+import paths from "../paths.cjs";

 const swDest = path.resolve(paths.app_output_root, "service_worker.js");

@@ -28,10 +29,9 @@ self.addEventListener('install', (event) => {

 gulp.task("gen-service-worker-app-prod", async () => {
  // Read bundled source file
-  const bundleManifestLatest = require(path.resolve(
-    paths.app_output_latest,
-    "manifest.json"
-  ));
+  const bundleManifestLatest = fs.readJsonSync(
+    path.resolve(paths.app_output_latest, "manifest.json")
+  );
  let serviceWorkerContent = fs.readFileSync(
    paths.app_output_root + bundleManifestLatest["service_worker.js"],
    "utf-8"
@@ -46,10 +46,9 @@ gulp.task("gen-service-worker-app-prod", async () => {
  );

  // Remove ES5
-  const bundleManifestES5 = require(path.resolve(
-    paths.app_output_es5,
-    "manifest.json"
-  ));
+  const bundleManifestES5 = fs.readJsonSync(
+    path.resolve(paths.app_output_es5, "manifest.json")
+  );
  fs.removeSync(paths.app_output_root + bundleManifestES5["service_worker.js"]);
  fs.removeSync(
    paths.app_output_root + bundleManifestES5["service_worker.js.map"]
@@ -1,19 +1,19 @@
-const del = import("del");
-const crypto = require("crypto");
-const path = require("path");
-const source = require("vinyl-source-stream");
-const vinylBuffer = require("vinyl-buffer");
-const gulp = require("gulp");
-const fs = require("fs");
-const flatmap = require("gulp-flatmap");
-const merge = require("gulp-merge-json");
-const rename = require("gulp-rename");
-const transform = require("gulp-json-transform");
-const { mapFiles } = require("../util");
-const env = require("../env");
-const paths = require("../paths");
-
-require("./fetch-nightly-translations");
+import { createHash } from "crypto";
+import { deleteSync } from "del";
+import { mkdirSync, readdirSync, readFileSync, renameSync } from "fs";
+import { writeFile } from "node:fs/promises";
+import gulp from "gulp";
+import flatmap from "gulp-flatmap";
+import transform from "gulp-json-transform";
+import merge from "gulp-merge-json";
+import rename from "gulp-rename";
+import path from "path";
+import vinylBuffer from "vinyl-buffer";
+import source from "vinyl-source-stream";
+import env from "../env.cjs";
+import paths from "../paths.cjs";
+import { mapFiles } from "../util.cjs";
+import "./fetch-nightly-translations.js";

 const inFrontendDir = "translations/frontend";
 const inBackendDir = "translations/backend";
@@ -33,7 +33,12 @@ gulp.task(

 // Panel translations which should be split from the core translations.
 const TRANSLATION_FRAGMENTS = Object.keys(
-  require("../../src/translations/en.json").ui.panel
+  JSON.parse(
+    readFileSync(
+      path.resolve(paths.polymer_dir, "src/translations/en.json"),
+      "utf-8"
+    )
+  ).ui.panel
 );

 function recursiveFlatten(prefix, data) {
@@ -120,36 +125,29 @@ function lokaliseTransform(data, original, file) {
  return output;
 }

-gulp.task("clean-translations", async () => (await del).deleteSync([workDir]));
+gulp.task("clean-translations", async () => deleteSync([workDir]));

-gulp.task("ensure-translations-build-dir", (done) => {
-  if (!fs.existsSync(workDir)) {
-    fs.mkdirSync(workDir, { recursive: true });
-  }
-  done();
+gulp.task("ensure-translations-build-dir", async () => {
+  mkdirSync(workDir, { recursive: true });
 });

-gulp.task("create-test-metadata", (cb) => {
-  fs.writeFile(
-    workDir + "/testMetadata.json",
-    JSON.stringify({
-      test: {
-        nativeName: "Test",
-      },
-    }),
-    cb
-  );
-});
+gulp.task("create-test-metadata", () =>
+  env.isProdBuild()
+    ? Promise.resolve()
+    : writeFile(
+        workDir + "/testMetadata.json",
+        JSON.stringify({ test: { nativeName: "Test" } })
+      )
+);

-gulp.task(
-  "create-test-translation",
-  gulp.series("create-test-metadata", () =>
-    gulp
-      .src(path.join(paths.translations_src, "en.json"))
-      .pipe(transform((data, _file) => recursiveEmpty(data)))
-      .pipe(rename("test.json"))
-      .pipe(gulp.dest(workDir))
-  )
+gulp.task("create-test-translation", () =>
+  env.isProdBuild()
+    ? Promise.resolve()
+    : gulp
+        .src(path.join(paths.translations_src, "en.json"))
+        .pipe(transform((data, _file) => recursiveEmpty(data)))
+        .pipe(rename("test.json"))
+        .pipe(gulp.dest(workDir))
 );

 /**
@@ -181,16 +179,11 @@ gulp.task("build-master-translation", () => {

 gulp.task("build-merged-translations", () =>
  gulp
-    .src(
-      [
-        inFrontendDir + "/*.json",
-        "!" + inFrontendDir + "/en.json",
-        workDir + "/test.json",
-      ],
-      {
-        allowEmpty: true,
-      }
-    )
+    .src([
+      inFrontendDir + "/*.json",
+      "!" + inFrontendDir + "/en.json",
+      ...(env.isProdBuild() ? [] : [workDir + "/test.json"]),
+    ])
    .pipe(transform((data, file) => lokaliseTransform(data, data, file)))
    .pipe(
      flatmap((stream, file) => {
@@ -303,15 +296,14 @@ const fingerprints = {};

 gulp.task("build-translation-fingerprints", () => {
  // Fingerprint full file of each language
-  const files = fs.readdirSync(fullDir);
+  const files = readdirSync(fullDir);

  for (let i = 0; i < files.length; i++) {
    fingerprints[files[i].split(".")[0]] = {
      // In dev we create fake hashes
      hash: env.isProdBuild()
-        ? crypto
-            .createHash("md5")
-            .update(fs.readFileSync(path.join(fullDir, files[i]), "utf-8"))
+        ? createHash("md5")
+            .update(readFileSync(path.join(fullDir, files[i]), "utf-8"))
            .digest("hex")
        : "dev",
    };
@@ -327,7 +319,7 @@ gulp.task("build-translation-fingerprints", () => {
        throw new Error(`Unable to find hash for ${filename}`);
      }

-      fs.renameSync(
+      renameSync(
        filename,
        `${parsed.dir}/${parsed.name}-${fingerprints[parsed.name].hash}${
          parsed.ext
@@ -371,14 +363,11 @@ gulp.task("build-translation-flatten-supervisor", () =>

 gulp.task("build-translation-write-metadata", () =>
  gulp
-    .src(
-      [
-        path.join(paths.translations_src, "translationMetadata.json"),
-        workDir + "/testMetadata.json",
-        workDir + "/translationFingerprints.json",
-      ],
-      { allowEmpty: true }
-    )
+    .src([
+      path.join(paths.translations_src, "translationMetadata.json"),
+      ...(env.isProdBuild() ? [] : [workDir + "/testMetadata.json"]),
+      workDir + "/translationFingerprints.json",
+    ])
    .pipe(merge({}))
    .pipe(
      transform((data) => {
@@ -409,7 +398,7 @@ gulp.task("build-translation-write-metadata", () =>
 gulp.task(
  "create-translations",
  gulp.series(
-    env.isProdBuild() ? (done) => done() : "create-test-translation",
+    gulp.parallel("create-test-metadata", "create-test-translation"),
    "build-master-translation",
    "build-merged-translations",
    gulp.parallel(...splitTasks),
@@ -437,6 +426,7 @@ gulp.task(
      "fetch-nightly-translations",
      gulp.series("clean-translations", "ensure-translations-build-dir")
    ),
+    gulp.parallel("create-test-metadata", "create-test-translation"),
    "build-master-translation",
    "build-merged-translations",
    "build-translation-fragment-supervisor",
@@ -1,8 +1,7 @@
-// Tasks to run Rollup
-const gulp = require("gulp");
-const { startDevServer } = require("@web/dev-server");
+import gulp from "gulp";
+import { startDevServer } from "@web/dev-server";

-gulp.task("wds-watch-app", () => {
+gulp.task("wds-watch-app", async () => {
  startDevServer({
    config: {
      watch: true,
@@ -1,18 +1,20 @@
 // Tasks to run webpack.
-const fs = require("fs");
-const gulp = require("gulp");
-const webpack = require("webpack");
-const WebpackDevServer = require("webpack-dev-server");
-const log = require("fancy-log");
-const path = require("path");
-const paths = require("../paths");
-const {
+
+import fs from "fs";
+import path from "path";
+import log from "fancy-log";
+import gulp from "gulp";
+import webpack from "webpack";
+import WebpackDevServer from "webpack-dev-server";
+import env from "../env.cjs";
+import paths from "../paths.cjs";
+import {
  createAppConfig,
-  createDemoConfig,
  createCastConfig,
-  createHassioConfig,
+  createDemoConfig,
  createGalleryConfig,
-} = require("../webpack");
+  createHassioConfig,
+} from "../webpack.cjs";

 const bothBuilds = (createConfigFunc, params) => [
  createConfigFunc({ ...params, latestBuild: true }),
@@ -42,6 +44,7 @@ const runDevServer = async ({
 }) => {
  const server = new WebpackDevServer(
    {
+      hot: false,
      open: true,
      host: listenHost,
      port,
@@ -104,6 +107,8 @@ gulp.task("webpack-prod-app", () =>
  prodBuild(
    bothBuilds(createAppConfig, {
      isProdBuild: true,
+      isStatsBuild: env.isStatsBuild(),
+      isTestBuild: env.isTestBuild(),
    })
  )
 );
@@ -161,6 +166,8 @@ gulp.task("webpack-prod-hassio", () =>
  prodBuild(
    bothBuilds(createHassioConfig, {
      isProdBuild: true,
+      isStatsBuild: env.isStatsBuild(),
+      isTestBuild: env.isTestBuild(),
    })
  )
 );
@@ -0,0 +1,83 @@
+#!/usr/bin/env node
+// Script to print Babel plugins and Core JS polyfills that will be used by browserslist environments
+
+import { version as babelVersion } from "@babel/core";
+import presetEnv from "@babel/preset-env";
+import compilationTargets from "@babel/helper-compilation-targets";
+import coreJSCompat from "core-js-compat";
+import { logPlugin } from "@babel/preset-env/lib/debug.js";
+// eslint-disable-next-line import/no-relative-packages
+import shippedPolyfills from "../node_modules/babel-plugin-polyfill-corejs3/lib/shipped-proposals.js";
+import { babelOptions } from "./bundle.cjs";
+
+const detailsOpen = (heading) =>
+  `<details>\n<summary><h4>${heading}</h4></summary>\n`;
+const detailsClose = "</details>\n";
+
+const dummyAPI = {
+  version: babelVersion,
+  assertVersion: () => {},
+  caller: (callback) =>
+    callback({
+      name: "Dummy Bundler",
+      supportsStaticESM: true,
+      supportsDynamicImport: true,
+      supportsTopLevelAwait: true,
+      supportsExportNamespaceFrom: true,
+    }),
+  targets: () => ({}),
+};
+
+// Generate filter function based on proposal/method inputs
+// Copied and adapted from babel-plugin-polyfill-corejs3/esm/index.mjs
+const polyfillFilter = (method, proposals, shippedProposals) => (name) => {
+  if (proposals || method === "entry-global") return true;
+  if (shippedProposals && shippedPolyfills.default.has(name)) {
+    return true;
+  }
+  if (name.startsWith("esnext.")) {
+    const esName = `es.${name.slice(7)}`;
+    // If its imaginative esName is not in latest compat data, it means the proposal is not stage 4
+    return esName in coreJSCompat.data;
+  }
+  return true;
+};
+
+// Log the plugins and polyfills for each build environment
+for (const buildType of ["Modern", "Legacy"]) {
+  const browserslistEnv = buildType.toLowerCase();
+  const babelOpts = babelOptions({ latestBuild: browserslistEnv === "modern" });
+  const presetEnvOpts = babelOpts.presets[0][1];
+
+  // Invoking preset-env in debug mode will log the included plugins
+  console.log(detailsOpen(`${buildType} Build Babel Plugins`));
+  presetEnv.default(dummyAPI, {
+    ...presetEnvOpts,
+    browserslistEnv,
+    debug: true,
+  });
+  console.log(detailsClose);
+
+  // Manually log the Core-JS polyfills using the same technique
+  if (presetEnvOpts.useBuiltIns) {
+    console.log(detailsOpen(`${buildType} Build Core-JS Polyfills`));
+    const targets = compilationTargets.default(babelOpts?.targets, {
+      browserslistEnv,
+    });
+    const polyfillList = coreJSCompat({ targets }).list.filter(
+      polyfillFilter(
+        `${presetEnvOpts.useBuiltIns}-global`,
+        presetEnvOpts?.corejs?.proposals,
+        presetEnvOpts?.shippedProposals
+      )
+    );
+    console.log(
+      "The following %i polyfills may be injected by Babel:\n",
+      polyfillList.length
+    );
+    for (const polyfill of polyfillList) {
+      logPlugin(polyfill, targets, coreJSCompat.data);
+    }
+    console.log(detailsClose);
+  }
+}
@@ -1,30 +1 @@
-[
-  {
-    "path": "M20,20H7A2,2 0 0,1 5,18V8.94L2.23,5.64C2.09,5.47 2,5.24 2,5A1,1 0 0,1 3,4H20A2,2 0 0,1 22,6V18A2,2 0 0,1 20,20M8.5,7A0.5,0.5 0 0,0 8,7.5V8.5A0.5,0.5 0 0,0 8.5,9H18.5A0.5,0.5 0 0,0 19,8.5V7.5A0.5,0.5 0 0,0 18.5,7H8.5M8.5,11A0.5,0.5 0 0,0 8,11.5V12.5A0.5,0.5 0 0,0 8.5,13H18.5A0.5,0.5 0 0,0 19,12.5V11.5A0.5,0.5 0 0,0 18.5,11H8.5M8.5,15A0.5,0.5 0 0,0 8,15.5V16.5A0.5,0.5 0 0,0 8.5,17H13.5A0.5,0.5 0 0,0 14,16.5V15.5A0.5,0.5 0 0,0 13.5,15H8.5Z",
-    "name": "android-messages"
-  },
-  {
-    "path": "M4,6H2V20A2,2 0 0,0 4,22H18V20H4V6M20,2H8A2,2 0 0,0 6,4V16A2,2 0 0,0 8,18H20A2,2 0 0,0 22,16V4A2,2 0 0,0 20,2M20,12L17.5,10.5L15,12V4H20V12Z",
-    "name": "book-variant-multiple"
-  },
-  {
-    "path": "M21,14H3V4H21M21,2H3C1.89,2 1,2.89 1,4V16A2,2 0 0,0 3,18H10L8,21V22H16V21L14,18H21A2,2 0 0,0 23,16V4C23,2.89 22.1,2 21,2Z",
-    "name": "desktop-mac"
-  },
-  {
-    "path": "M21,14V4H3V14H21M21,2A2,2 0 0,1 23,4V16A2,2 0 0,1 21,18H14L16,21V22H8V21L10,18H3C1.89,18 1,17.1 1,16V4C1,2.89 1.89,2 3,2H21M4,5H15V10H4V5M16,5H20V7H16V5M20,8V13H16V8H20M4,11H9V13H4V11M10,11H15V13H10V11Z",
-    "name": "desktop-mac-dashboard"
-  },
-  {
-    "path": "M22,24L16.75,19L17.38,21H4.5A2.5,2.5 0 0,1 2,18.5V3.5A2.5,2.5 0 0,1 4.5,1H19.5A2.5,2.5 0 0,1 22,3.5V24M12,6.8C9.32,6.8 7.44,7.95 7.44,7.95C8.47,7.03 10.27,6.5 10.27,6.5L10.1,6.33C8.41,6.36 6.88,7.53 6.88,7.53C5.16,11.12 5.27,14.22 5.27,14.22C6.67,16.03 8.75,15.9 8.75,15.9L9.46,15C8.21,14.73 7.42,13.62 7.42,13.62C7.42,13.62 9.3,14.9 12,14.9C14.7,14.9 16.58,13.62 16.58,13.62C16.58,13.62 15.79,14.73 14.54,15L15.25,15.9C15.25,15.9 17.33,16.03 18.73,14.22C18.73,14.22 18.84,11.12 17.12,7.53C17.12,7.53 15.59,6.36 13.9,6.33L13.73,6.5C13.73,6.5 15.53,7.03 16.56,7.95C16.56,7.95 14.68,6.8 12,6.8M9.93,10.59C10.58,10.59 11.11,11.16 11.1,11.86C11.1,12.55 10.58,13.13 9.93,13.13C9.29,13.13 8.77,12.55 8.77,11.86C8.77,11.16 9.28,10.59 9.93,10.59M14.1,10.59C14.75,10.59 15.27,11.16 15.27,11.86C15.27,12.55 14.75,13.13 14.1,13.13C13.46,13.13 12.94,12.55 12.94,11.86C12.94,11.16 13.45,10.59 14.1,10.59Z",
-    "name": "discord"
-  },
-  {
-    "path": "M8.06,7.78C7.5,7.78 7.17,7.73 7.08,7.64L6.66,13.73C7.19,14.05 7.88,14.3 8.72,14.5C9.56,14.71 10.78,14.77 12.38,14.67C13.97,14.58 15.63,14.23 17.34,13.64L16.55,4.22C15.67,5.09 14.38,5.91 12.66,6.66C11.13,7.31 9.81,7.69 8.72,7.78H8.06M7.97,5.34C7.28,5.94 7,6.34 7.13,6.56C7.22,6.78 7.7,6.84 8.58,6.75C9.67,6.66 10.91,6.31 12.28,5.72C13.22,5.31 14.03,4.88 14.72,4.41C15.41,3.94 15.88,3.55 16.13,3.23C16.38,2.92 16.47,2.7 16.41,2.58C16.34,2.42 16.03,2.34 15.47,2.34C14.34,2.34 12.94,2.7 11.25,3.42C9.81,4.05 8.72,4.69 7.97,5.34M17.34,2.2C17.41,2.33 17.44,2.47 17.44,2.63L18.61,17C18.61,18.73 18,20.09 16.83,21.07C15.64,22.05 14.03,22.55 12,22.55C10,22.55 8.4,22.04 7.2,21C6,20 5.39,18.64 5.39,16.92L6.09,6.47C6.09,6.22 6.2,5.94 6.42,5.63C6.64,5.31 6.84,5.06 7.03,4.88L7.36,4.59C8.33,3.78 9.5,3.08 10.88,2.5C11.81,2.08 12.73,1.77 13.62,1.57C14.5,1.37 15.3,1.3 16,1.38C16.71,1.46 17.16,1.73 17.34,2.2Z",
-    "name": "google-home"
-  },
-  {
-    "path": "M19.25,19H4.75V3H19.25M14,22H10V21H14M18,0H6A3,3 0 0,0 3,3V21A3,3 0 0,0 6,24H18A3,3 0 0,0 21,21V3A3,3 0 0,0 18,0Z",
-    "name": "tablet-android"
-  }
-]
+[]
@@ -103,7 +103,7 @@ module.exports = function (opts = {}) {
        }
        delete optionsObject.type;

-        if (!new RegExp("^.*/").test(workerFile)) {
+        if (!/^.*\//.test(workerFile)) {
          this.warn(
            `Paths passed to the Worker constructor must be relative or absolute, i.e. start with /, ./ or ../ (just like dynamic import!). Ignoring "${workerFile}".`
          );
@@ -3,18 +3,18 @@ const path = require("path");
 const commonjs = require("@rollup/plugin-commonjs");
 const resolve = require("@rollup/plugin-node-resolve");
 const json = require("@rollup/plugin-json");
-const babel = require("@rollup/plugin-babel").babel;
+const { babel } = require("@rollup/plugin-babel");
 const replace = require("@rollup/plugin-replace");
 const visualizer = require("rollup-plugin-visualizer");
 const { string } = require("rollup-plugin-string");
 const { terser } = require("rollup-plugin-terser");
-const manifest = require("./rollup-plugins/manifest-plugin");
-const worker = require("./rollup-plugins/worker-plugin");
-const dontHashPlugin = require("./rollup-plugins/dont-hash-plugin");
-const ignore = require("./rollup-plugins/ignore-plugin");
+const manifest = require("./rollup-plugins/manifest-plugin.cjs");
+const worker = require("./rollup-plugins/worker-plugin.cjs");
+const dontHashPlugin = require("./rollup-plugins/dont-hash-plugin.cjs");
+const ignore = require("./rollup-plugins/ignore-plugin.cjs");

-const bundle = require("./bundle");
-const paths = require("./paths");
+const bundle = require("./bundle.cjs");
+const paths = require("./paths.cjs");

 const extensions = [".js", ".ts"];

@@ -39,11 +39,18 @@ const createRollupConfig = ({
  inputOptions: {
    input: entry,
    // Some entry points contain no JavaScript. This setting silences a warning about that.
-    // https://rollupjs.org/guide/en/#preserveentrysignatures
+    // https://rollupjs.org/configuration-options/#preserveentrysignatures
    preserveEntrySignatures: false,
    plugins: [
      ignore({
-        files: bundle.emptyPackages({ latestBuild }),
+        files: bundle
+          .emptyPackages({ latestBuild })
+          // TEMP HACK: Makes Rollup build work again
+          .concat(
+            require.resolve(
+              "@webcomponents/scoped-custom-element-registry/scoped-custom-element-registry.min"
+            )
+          ),
      }),
      resolve({
        extensions,
@@ -54,7 +61,7 @@ const createRollupConfig = ({
      commonjs(),
      json(),
      babel({
-        ...bundle.babelOptions({ latestBuild }),
+        ...bundle.babelOptions({ latestBuild, isProdBuild }),
        extensions,
        babelHelpers: isWDS ? "inline" : "bundled",
      }),
@@ -69,7 +76,7 @@ const createRollupConfig = ({
        }),
      !isWDS && worker(),
      !isWDS && dontHashPlugin({ dontHash }),
-      !isWDS && isProdBuild && terser(bundle.terserOptions(latestBuild)),
+      !isWDS && isProdBuild && terser(bundle.terserOptions({ latestBuild })),
      !isWDS &&
        isStatsBuild &&
        visualizer({
@@ -83,20 +90,20 @@ const createRollupConfig = ({
   * @type { import("rollup").OutputOptions }
   */
  outputOptions: {
-    // https://rollupjs.org/guide/en/#outputdir
+    // https://rollupjs.org/configuration-options/#output-dir
    dir: outputPath,
-    // https://rollupjs.org/guide/en/#outputformat
+    // https://rollupjs.org/configuration-options/#output-format
    format: latestBuild ? "es" : "systemjs",
-    // https://rollupjs.org/guide/en/#outputexternallivebindings
+    // https://rollupjs.org/configuration-options/#output-externallivebindings
    externalLiveBindings: false,
-    // https://rollupjs.org/guide/en/#outputentryfilenames
-    // https://rollupjs.org/guide/en/#outputchunkfilenames
-    // https://rollupjs.org/guide/en/#outputassetfilenames
+    // https://rollupjs.org/configuration-options/#output-entryfilenames
+    // https://rollupjs.org/configuration-options/#output-chunkfilenames
+    // https://rollupjs.org/configuration-options/#output-assetfilenames
    entryFileNames:
      isProdBuild && !isStatsBuild ? "[name]-[hash].js" : "[name].js",
    chunkFileNames: isProdBuild && !isStatsBuild ? "c.[hash].js" : "[name].js",
    assetFileNames: isProdBuild && !isStatsBuild ? "a.[hash].js" : "[name].js",
-    // https://rollupjs.org/guide/en/#outputsourcemap
+    // https://rollupjs.org/configuration-options/#output-sourcemap
    sourcemap: isProdBuild ? true : "inline",
  },
 });
@@ -135,4 +142,5 @@ module.exports = {
  createCastConfig,
  createHassioConfig,
  createGalleryConfig,
+  createRollupConfig,
 };
@@ -1,11 +1,14 @@
-const webpack = require("webpack");
+const { existsSync } = require("fs");
 const path = require("path");
+const webpack = require("webpack");
+const { StatsWriterPlugin } = require("webpack-stats-plugin");
+const filterStats = require("@bundle-stats/plugin-webpack-filter").default;
 const TerserPlugin = require("terser-webpack-plugin");
 const { WebpackManifestPlugin } = require("webpack-manifest-plugin");
 const log = require("fancy-log");
 const WebpackBar = require("webpackbar");
-const paths = require("./paths.js");
-const bundle = require("./bundle.js");
+const paths = require("./paths.cjs");
+const bundle = require("./bundle.cjs");

 class LogStartCompilePlugin {
  ignoredFirst = false;
@@ -22,6 +25,7 @@ class LogStartCompilePlugin {
 }

 const createWebpackConfig = ({
+  name,
  entry,
  outputPath,
  publicPath,
@@ -29,6 +33,7 @@ const createWebpackConfig = ({
  isProdBuild,
  latestBuild,
  isStatsBuild,
+  isTestBuild,
  isHassioBuild,
  dontHash,
 }) => {
@@ -37,11 +42,17 @@ const createWebpackConfig = ({
  }
  const ignorePackages = bundle.ignorePackages({ latestBuild });
  return {
+    name,
    mode: isProdBuild ? "production" : "development",
-    target: ["web", latestBuild ? "es2017" : "es5"],
-    devtool: isProdBuild
-      ? "cheap-module-source-map"
-      : "eval-cheap-module-source-map",
+    target: `browserslist:${latestBuild ? "modern" : "legacy"}`,
+    // For tests/CI, source maps are skipped to gain build speed
+    // For production, generate source maps for accurate stack traces without source code
+    // For development, generate "cheap" versions that can map to original line numbers
+    devtool: isTestBuild
+      ? false
+      : isProdBuild
+        ? "nosources-source-map"
+        : "eval-cheap-module-source-map",
    entry,
    node: false,
    module: {
@@ -51,11 +62,14 @@ const createWebpackConfig = ({
          use: {
            loader: "babel-loader",
            options: {
-              ...bundle.babelOptions({ latestBuild }),
+              ...bundle.babelOptions({ latestBuild, isProdBuild, isTestBuild }),
              cacheDirectory: !isProdBuild,
              cacheCompression: false,
            },
          },
+          resolve: {
+            fullySpecified: false,
+          },
        },
        {
          test: /\.css$/,
@@ -68,11 +82,18 @@ const createWebpackConfig = ({
        new TerserPlugin({
          parallel: true,
          extractComments: true,
-          terserOptions: bundle.terserOptions(latestBuild),
+          terserOptions: bundle.terserOptions({ latestBuild, isTestBuild }),
        }),
      ],
      moduleIds: isProdBuild && !isStatsBuild ? "deterministic" : "named",
      chunkIds: isProdBuild && !isStatsBuild ? "deterministic" : "named",
+      splitChunks: {
+        // Disable splitting for web workers with ESM output
+        // Imports of external chunks are broken
+        chunks: latestBuild
+          ? (chunk) => !chunk.canBeInitial() && !/^.+-worker$/.test(chunk.name)
+          : undefined,
+      },
    },
    plugins: [
      !isStatsBuild && new WebpackBar({ fancy: !isProdBuild }),
@@ -121,7 +142,27 @@ const createWebpackConfig = ({
        ),
        path.resolve(paths.polymer_dir, "src/util/empty.js")
      ),
+      // See `src/resources/intl-polyfill-legacy.ts` for explanation
+      !latestBuild &&
+        new webpack.NormalModuleReplacementPlugin(
+          new RegExp(
+            path.resolve(paths.polymer_dir, "src/resources/intl-polyfill.ts")
+          ),
+          path.resolve(
+            paths.polymer_dir,
+            "src/resources/intl-polyfill-legacy.ts"
+          )
+        ),
      !isProdBuild && new LogStartCompilePlugin(),
+      isProdBuild &&
+        new StatsWriterPlugin({
+          filename: path.relative(
+            outputPath,
+            path.join(paths.build_dir, "stats", `${name}.json`)
+          ),
+          stats: { assets: true, chunks: true, modules: true },
+          transform: (stats) => JSON.stringify(filterStats(stats)),
+        }),
    ].filter(Boolean),
    resolve: {
      extensions: [".ts", ".js", ".json"],
@@ -135,34 +176,72 @@ const createWebpackConfig = ({
        "lit/directives/guard$": "lit/directives/guard.js",
        "lit/directives/cache$": "lit/directives/cache.js",
        "lit/directives/repeat$": "lit/directives/repeat.js",
+        "lit/directives/live$": "lit/directives/live.js",
        "lit/polyfill-support$": "lit/polyfill-support.js",
        "@lit-labs/virtualizer/layouts/grid":
          "@lit-labs/virtualizer/layouts/grid.js",
+        "@lit-labs/virtualizer/polyfills/resize-observer-polyfill/ResizeObserver":
+          "@lit-labs/virtualizer/polyfills/resize-observer-polyfill/ResizeObserver.js",
+        "@lit-labs/observers/resize-controller":
+          "@lit-labs/observers/resize-controller.js",
      },
    },
    output: {
-      filename: ({ chunk }) => {
-        if (!isProdBuild || isStatsBuild || dontHash.has(chunk.name)) {
-          return `${chunk.name}.js`;
-        }
-        return `${chunk.name}.${chunk.hash.substr(0, 8)}.js`;
-      },
+      module: latestBuild,
+      filename: ({ chunk }) =>
+        !isProdBuild || isStatsBuild || dontHash.has(chunk.name)
+          ? "[name].js"
+          : "[name].[contenthash].js",
      chunkFilename:
-        isProdBuild && !isStatsBuild ? "[chunkhash:8].js" : "[id].chunk.js",
+        isProdBuild && !isStatsBuild ? "[name].[contenthash].js" : "[name].js",
+      assetModuleFilename:
+        isProdBuild && !isStatsBuild ? "[id].[contenthash][ext]" : "[id][ext]",
+      crossOriginLoading: "use-credentials",
+      hashFunction: "xxhash64",
+      hashDigest: "base64url",
+      hashDigestLength: 11, // full length of 64 bit base64url
      path: outputPath,
      publicPath,
      // To silence warning in worker plugin
      globalObject: "self",
+      // Since production source maps don't include sources, we need to point to them elsewhere
+      // For dependencies, just provide the path (no source in browser)
+      // Otherwise, point to the raw code on GitHub for browser to load
+      ...Object.fromEntries(
+        ["", "Fallback"].map((v) => [
+          `devtool${v}ModuleFilenameTemplate`,
+          !isTestBuild && isProdBuild
+            ? (info) => {
+                if (
+                  !path.isAbsolute(info.absoluteResourcePath) ||
+                  !existsSync(info.resourcePath) ||
+                  info.resourcePath.startsWith("./node_modules")
+                ) {
+                  // Source URLs are unknown for dependencies, so we use a relative URL with a
+                  // non - existent top directory.  This results in a clean source tree in browser
+                  // dev tools, and they stay happy getting 404s with valid requests.
+                  return `/unknown${path.resolve("/", info.resourcePath)}`;
+                }
+                return new URL(info.resourcePath, bundle.sourceMapURL()).href;
+              }
+            : undefined,
+        ])
+      ),
    },
    experiments: {
-      topLevelAwait: true,
+      outputModule: true,
    },
  };
 };

-const createAppConfig = ({ isProdBuild, latestBuild, isStatsBuild }) =>
+const createAppConfig = ({
+  isProdBuild,
+  latestBuild,
+  isStatsBuild,
+  isTestBuild,
+}) =>
  createWebpackConfig(
-    bundle.config.app({ isProdBuild, latestBuild, isStatsBuild })
+    bundle.config.app({ isProdBuild, latestBuild, isStatsBuild, isTestBuild })
  );

 const createDemoConfig = ({ isProdBuild, latestBuild, isStatsBuild }) =>
@@ -173,8 +252,20 @@ const createDemoConfig = ({ isProdBuild, latestBuild, isStatsBuild }) =>
 const createCastConfig = ({ isProdBuild, latestBuild }) =>
  createWebpackConfig(bundle.config.cast({ isProdBuild, latestBuild }));

-const createHassioConfig = ({ isProdBuild, latestBuild }) =>
-  createWebpackConfig(bundle.config.hassio({ isProdBuild, latestBuild }));
+const createHassioConfig = ({
+  isProdBuild,
+  latestBuild,
+  isStatsBuild,
+  isTestBuild,
+}) =>
+  createWebpackConfig(
+    bundle.config.hassio({
+      isProdBuild,
+      latestBuild,
+      isStatsBuild,
+      isTestBuild,
+    })
+  );

 const createGalleryConfig = ({ isProdBuild, latestBuild }) =>
  createWebpackConfig(bundle.config.gallery({ isProdBuild, latestBuild }));
@@ -185,4 +276,5 @@ module.exports = {
  createCastConfig,
  createHassioConfig,
  createGalleryConfig,
+  createWebpackConfig,
 };
@@ -1,3 +1,3 @@
-self.addEventListener("fetch", function(event) {
+self.addEventListener("fetch", (event) => {
  event.respondWith(fetch(event.request));
 });
@@ -1,5 +1,5 @@
-const rollup = require("../build-scripts/rollup.js");
-const env = require("../build-scripts/env.js");
+import rollup from "../build-scripts/rollup.cjs";
+import env from "../build-scripts/env.cjs";

 const config = rollup.createCastConfig({
  isProdBuild: env.isProdBuild(),
@@ -7,4 +7,4 @@ const config = rollup.createCastConfig({
  isStatsBuild: env.isStatsBuild(),
 });

-module.exports = { ...config.inputOptions, output: config.outputOptions };
+export default { ...config.inputOptions, output: config.outputOptions };
@@ -0,0 +1,24 @@
+<meta property="fb:app_id" content="338291289691179" />
+<meta property="og:title" content="Home Assistant Cast" />
+<meta property="og:site_name" content="Home Assistant Cast" />
+<meta property="og:url" content="https://cast.home-assistant.io/" />
+<meta property="og:type" content="website" />
+<meta
+  property="og:description"
+  content="Show Home Assistant on your Chromecast or Google Assistant devices with a screen."
+/>
+<meta
+  property="og:image"
+  content="https://cast.home-assistant.io/images/google-nest-hub.png"
+/>
+<meta name="twitter:card" content="summary_large_image" />
+<meta name="twitter:site" content="@home_assistant" />
+<meta name="twitter:title" content="Home Assistant Cast" />
+<meta
+  name="twitter:description"
+  content="Show Home Assistant on your Chromecast or Google Assistant devices with a screen."
+/>
+<meta
+  name="twitter:image"
+  content="https://cast.home-assistant.io/images/google-nest-hub.png"
+/>
@@ -3,7 +3,7 @@
  <head>
    <title>Home Assistant Cast - FAQ</title>
    <link rel="icon" href="/images/ha-cast-icon.png" type="image/png" />
-    <%= renderTemplate('_style_base') %>
+    <%= renderTemplate("../../../src/html/_style_base.html.template") %>
    <style>
      body {
        background-color: #e5e5e5;
@@ -35,25 +35,14 @@
    />
  </head>
  <body>
-    <%= renderTemplate('_js_base') %>
-
+    <%= renderTemplate("../../../src/html/_js_base.html.template") %>
    <script>
-      import("<%= latestLauncherJS %>");
+      <% for (const entry of latestEntryJS) { %>
+        import("<%= entry %>");
+      <% } %>
      window.latestJS = true;
    </script>
-
-    <script>
-      if (!window.latestJS) {
-        <% if (useRollup) { %>
-          _ls("/static/js/s.min.js").onload = function() {
-            System.import("<%= es5LauncherJS %>");
-          };
-        <% } else { %>
-          _ls("<%= es5LauncherJS %>");
-        <% } %>
-      }
-    </script>
-
+    <%= renderTemplate("../../../src/html/_script_load_es5.html.template") %>
    <hc-layout subtitle="FAQ">
      <style>
        a {
@@ -0,0 +1,35 @@
+<!DOCTYPE html>
+<html>
+  <head>
+    <title>Home Assistant Cast</title>
+    <link rel="manifest" href="/manifest.json" />
+    <link rel="icon" href="/images/ha-cast-icon.png" type="image/png" />
+    <%= renderTemplate("../../../src/html/_style_base.html.template") %>
+    <style>
+      body {
+        background-color: #e5e5e5;
+      }
+    </style>
+    <%= renderTemplate("_social_meta.html.template") %>
+  </head>
+  <body>
+    <%= renderTemplate("../../../src/html/_js_base.html.template") %>
+    <hc-connect></hc-connect>
+    <script>
+      <% for (const entry of latestEntryJS) { %>
+        import("<%= entry %>");
+      <% } %>
+      window.latestJS = true;
+    </script>
+    <%= renderTemplate("../../../src/html/_script_load_es5.html.template") %>
+    <script>
+    (function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
+    (i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
+    m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
+    })(window,document,'script','https://www.google-analytics.com/analytics.js','ga');
+
+    ga('create', 'UA-57927901-9', 'auto');
+    ga('send', 'pageview', location.pathname.includes("auth_callback") === -1 ? location.pathname : "/");
+    </script>
+  </body>
+</html>
@@ -1,57 +0,0 @@
-<!DOCTYPE html>
-<html>
-  <head>
-    <title>Home Assistant Cast</title>
-    <link rel="manifest" href="/manifest.json" />
-    <link rel="icon" href="/images/ha-cast-icon.png" type="image/png" />
-    <%= renderTemplate('_style_base') %>
-    <style>
-      body {
-        background-color: #e5e5e5;
-      }
-    </style>
-    <meta property="fb:app_id" content="338291289691179">
-    <meta property="og:title" content="Home Assistant Cast">
-    <meta property="og:site_name" content="Home Assistant Cast">
-    <meta property="og:url" content="https://cast.home-assistant.io/">
-    <meta property="og:type" content="website">
-    <meta property="og:description" content="Show Home Assistant on your Chromecast or Google Assistant devices with a screen.">
-    <meta property="og:image" content="https://cast.home-assistant.io/images/google-nest-hub.png">
-    <meta name="twitter:card" content="summary_large_image">
-    <meta name="twitter:site" content="@home_assistant">
-    <meta name="twitter:title" content="Home Assistant Cast">
-    <meta name="twitter:description" content="Show Home Assistant on your Chromecast or Google Assistant devices with a screen.">
-    <meta name="twitter:image" content="https://cast.home-assistant.io/images/google-nest-hub.png">
-  </head>
-  <body>
-    <%= renderTemplate('_js_base') %>
-
-    <hc-connect></hc-connect>
-
-    <script>
-      import("<%= latestLauncherJS %>");
-      window.latestJS = true;
-    </script>
-
-    <script>
-      if (!window.latestJS) {
-        <% if (useRollup) { %>
-          _ls("/static/js/s.min.js").onload = function() {
-            System.import("<%= es5LauncherJS %>");
-          };
-        <% } else { %>
-          _ls("<%= es5LauncherJS %>");
-        <% } %>
-      }
-    </script>
-    <script>
-    (function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
-    (i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
-    m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
-    })(window,document,'script','https://www.google-analytics.com/analytics.js','ga');
-
-    ga('create', 'UA-57927901-9', 'auto');
-    ga('send', 'pageview', location.pathname.includes("auth_callback") === -1 ? location.pathname : "/");
-    </script>
-  </body>
-</html>
@@ -22,25 +22,14 @@
    </script>
  </head>
  <body>
-    <%= renderTemplate('_js_base') %>
-
+    <%= renderTemplate("../../../src/html/_js_base.html.template") %>
    <cast-media-player></cast-media-player>
-
    <script>
-      import("<%= latestMediaJS %>");
+      <% for (const entry of latestEntryJS) { %>
+        import("<%= entry %>");
+      <% } %>
      window.latestJS = true;
    </script>
-
-    <script>
-      if (!window.latestJS) {
-        <% if (useRollup) { %>
-          _ls("/static/js/s.min.js").onload = function() {
-            System.import("<%= es5MediaJS %>");
-          };
-        <% } else { %>
-          _ls("<%= es5MediaJS %>");
-        <% } %>
-      }
-    </script>
+    <%= renderTemplate("../../../src/html/_script_load_es5.html.template") %>
  </body>
 </html>
@@ -1,8 +1,10 @@
 <!DOCTYPE html>
 <html>
  <script src="//www.gstatic.com/cast/sdk/libs/caf_receiver/v3/cast_receiver_framework.js"></script>
-  <script type="module" src="<%= latestReceiverJS %>"></script>
-  <%= renderTemplate('_style_base') %>
+  <% for (const entry of latestEntryJS) { %>
+    <script type="module" src="<%= entry %>"></script>
+  <% } %>
+  <%= renderTemplate("../../../src/html/_style_base.html.template") %>
  <style>
    body {
      background-color: white;
@@ -1,4 +1,4 @@
 import "../../../src/resources/safari-14-attachshadow-patch";
-import "../../../src/resources/ha-style";
-import "../../../src/resources/roboto";
 import "./layout/hc-connect";
+
+import("../../../src/resources/ha-style");
@@ -3,7 +3,7 @@ import { mdiCast, mdiCastConnected } from "@mdi/js";
 import "@polymer/paper-item/paper-icon-item";
 import "@polymer/paper-listbox/paper-listbox";
 import { Auth, Connection } from "home-assistant-js-websocket";
-import { css, CSSResultGroup, html, LitElement, TemplateResult } from "lit";
+import { CSSResultGroup, LitElement, TemplateResult, css, html } from "lit";
 import { customElement, property, state } from "lit/decorators";
 import { CastManager } from "../../../../src/cast/cast_manager";
 import {
@@ -22,8 +22,9 @@ import "../../../../src/components/ha-svg-icon";
 import {
  getLegacyLovelaceCollection,
  getLovelaceCollection,
-  LovelaceConfig,
 } from "../../../../src/data/lovelace";
+import { isStrategyDashboard } from "../../../../src/data/lovelace/config/types";
+import { LovelaceViewConfig } from "../../../../src/data/lovelace/config/view";
 import "../../../../src/layouts/hass-loading-screen";
 import { generateDefaultViewConfig } from "../../../../src/panels/lovelace/common/generate-lovelace-config";
 import "./hc-layout";
@@ -38,10 +39,10 @@ class HcCast extends LitElement {

  @state() private askWrite = false;

-  @state() private lovelaceConfig?: LovelaceConfig | null;
+  @state() private lovelaceViews?: LovelaceViewConfig[] | null;

  protected render(): TemplateResult {
-    if (this.lovelaceConfig === undefined) {
+    if (this.lovelaceViews === undefined) {
      return html`<hass-loading-screen no-toolbar></hass-loading-screen>`;
    }

@@ -72,43 +73,44 @@ class HcCast extends LitElement {
        ${error
          ? html` <div class="card-content">${error}</div> `
          : !this.castManager.status
-          ? html`
-              <p class="center-item">
-                <mwc-button raised @click=${this._handleLaunch}>
-                  <ha-svg-icon .path=${mdiCast}></ha-svg-icon>
-                  Start Casting
-                </mwc-button>
-              </p>
-            `
-          : html`
-              <div class="section-header">PICK A VIEW</div>
-              <paper-listbox
-                attr-for-selected="data-path"
-                .selected=${this.castManager.status.lovelacePath || ""}
-              >
-                ${(this.lovelaceConfig
-                  ? this.lovelaceConfig.views
-                  : [generateDefaultViewConfig({}, {}, {}, {}, () => "")]
-                ).map(
-                  (view, idx) => html`
-                    <paper-icon-item
-                      @click=${this._handlePickView}
-                      data-path=${view.path || idx}
-                    >
-                      ${view.icon
-                        ? html`
-                            <ha-icon
-                              .icon=${view.icon}
-                              slot="item-icon"
-                            ></ha-icon>
-                          `
-                        : ""}
-                      ${view.title || view.path}
-                    </paper-icon-item>
-                  `
-                )}
-              </paper-listbox>
-            `}
+            ? html`
+                <p class="center-item">
+                  <mwc-button raised @click=${this._handleLaunch}>
+                    <ha-svg-icon .path=${mdiCast}></ha-svg-icon>
+                    Start Casting
+                  </mwc-button>
+                </p>
+              `
+            : html`
+                <div class="section-header">PICK A VIEW</div>
+                <paper-listbox
+                  attr-for-selected="data-path"
+                  .selected=${this.castManager.status.lovelacePath || ""}
+                >
+                  ${(
+                    this.lovelaceViews ?? [
+                      generateDefaultViewConfig({}, {}, {}, {}, () => ""),
+                    ]
+                  ).map(
+                    (view, idx) => html`
+                      <paper-icon-item
+                        @click=${this._handlePickView}
+                        data-path=${view.path || idx}
+                      >
+                        ${view.icon
+                          ? html`
+                              <ha-icon
+                                .icon=${view.icon}
+                                slot="item-icon"
+                              ></ha-icon>
+                            `
+                          : ""}
+                        ${view.title || view.path}
+                      </paper-icon-item>
+                    `
+                  )}
+                </paper-listbox>
+              `}
        <div class="card-actions">
          ${this.castManager.status
            ? html`
@@ -136,11 +138,15 @@ class HcCast extends LitElement {
    llColl.refresh().then(
      () => {
        llColl.subscribe((config) => {
-          this.lovelaceConfig = config;
+          if (isStrategyDashboard(config)) {
+            this.lovelaceViews = null;
+          } else {
+            this.lovelaceViews = config.views;
+          }
        });
      },
      async () => {
-        this.lovelaceConfig = null;
+        this.lovelaceViews = null;
      }
    );

@@ -159,9 +165,7 @@ class HcCast extends LitElement {
    toggleAttribute(
      this,
      "hide-icons",
-      this.lovelaceConfig
-        ? !this.lovelaceConfig.views.some((view) => view.icon)
-        : true
+      this.lovelaceViews ? !this.lovelaceViews.some((view) => view.icon) : true
    );
  }

@@ -1,6 +1,5 @@
 import "@material/mwc-button";
 import { mdiCastConnected, mdiCast } from "@mdi/js";
-import "@polymer/paper-input/paper-input";
 import {
  Auth,
  Connection,
@@ -24,6 +23,7 @@ import "../../../../src/components/ha-svg-icon";
 import "../../../../src/layouts/hass-loading-screen";
 import { registerServiceWorker } from "../../../../src/util/register-service-worker";
 import "./hc-layout";
+import "../../../../src/components/ha-textfield";

 const seeFAQ = (qid) => html`
  See <a href="./faq.html${qid ? `#${qid}` : ""}">the FAQ</a> for more
@@ -33,13 +33,13 @@ const translateErr = (err) =>
  err === ERR_CANNOT_CONNECT
    ? "Unable to connect"
    : err === ERR_HASS_HOST_REQUIRED
-    ? "Please enter a Home Assistant URL."
-    : err === ERR_INVALID_HTTPS_TO_HTTP
-    ? html`
-        Cannot connect to Home Assistant instances over "http://".
-        ${seeFAQ("https")}
-      `
-    : `Unknown error (${err}).`;
+      ? "Please enter a Home Assistant URL."
+      : err === ERR_INVALID_HTTPS_TO_HTTP
+        ? html`
+            Cannot connect to Home Assistant instances over "http://".
+            ${seeFAQ("https")}
+          `
+        : `Unknown error (${err}).`;

 const INTRO = html`
  <p>
@@ -116,13 +116,11 @@ export class HcConnect extends LitElement {
              To get started, enter your Home Assistant URL and click authorize.
              If you want a preview instead, click the show demo button.
            </p>
-            <p>
-              <paper-input
-                label="Home Assistant URL"
-                placeholder="https://abcdefghijklmnop.ui.nabu.casa"
-                @keydown=${this._handleInputKeyDown}
-              ></paper-input>
-            </p>
+            <ha-textfield
+              label="Home Assistant URL"
+              placeholder="https://abcdefghijklmnop.ui.nabu.casa"
+              @keydown=${this._handleInputKeyDown}
+            ></ha-textfield>
            ${this.error ? html` <p class="error">${this.error}</p> ` : ""}
          </div>
          <div class="card-actions">
@@ -190,13 +188,13 @@ export class HcConnect extends LitElement {

  private _handleInputKeyDown(ev: KeyboardEvent) {
    // Handle pressing enter.
-    if (ev.keyCode === 13) {
+    if (ev.key === "Enter") {
      this._handleConnect();
    }
  }

  private async _handleConnect() {
-    const inputEl = this.shadowRoot!.querySelector("paper-input")!;
+    const inputEl = this.shadowRoot!.querySelector("ha-textfield")!;
    const value = inputEl.value || "";
    this.error = undefined;

@@ -315,6 +313,10 @@ export class HcConnect extends LitElement {
      .spacer {
        flex: 1;
      }
+
+      ha-textfield {
+        width: 100%;
+      }
    `;
  }
 }
@@ -1,19 +1,21 @@
-const castContext = cast.framework.CastReceiverContext.getInstance();
+import { framework } from "../receiver/cast_framework";
+
+const castContext = framework.CastReceiverContext.getInstance();

 const playerManager = castContext.getPlayerManager();

 playerManager.setMessageInterceptor(
-  cast.framework.messages.MessageType.LOAD,
+  framework.messages.MessageType.LOAD,
  (loadRequestData) => {
    const media = loadRequestData.media;
    // Special handling if it came from Google Assistant
    if (media.entity) {
      media.contentId = media.entity;
-      media.streamType = cast.framework.messages.StreamType.LIVE;
+      media.streamType = framework.messages.StreamType.LIVE;
      media.contentType = "application/vnd.apple.mpegurl";
      // @ts-ignore
      media.hlsVideoSegmentFormat =
-        cast.framework.messages.HlsVideoSegmentFormat.FMP4;
+        framework.messages.HlsVideoSegmentFormat.FMP4;
    }
    return loadRequestData;
  }
@@ -1,2 +1,3 @@
-/* eslint-disable no-undef */
-export const castContext = cast.framework.CastReceiverContext.getInstance();
+import { framework } from "./cast_framework";
+
+export const castContext = framework.CastReceiverContext.getInstance();
@@ -0,0 +1,3 @@
+import type { cast as ReceiverCast } from "chromecast-caf-receiver";
+
+export const framework = (cast as unknown as typeof ReceiverCast).framework;
@@ -1,7 +1,5 @@
-import {
-  LovelaceCardConfig,
-  LovelaceConfig,
-} from "../../../../src/data/lovelace";
+import { LovelaceCardConfig } from "../../../../src/data/lovelace/config/card";
+import { LovelaceConfig } from "../../../../src/data/lovelace/config/types";
 import { castContext } from "../cast_context";

 export const castDemoLovelace: () => LovelaceConfig = () => {
@@ -1,4 +1,4 @@
-/* eslint-disable no-undef */
+import { framework } from "./cast_framework";
 import { CAST_NS } from "../../../src/cast/const";
 import { HassMessage } from "../../../src/cast/receiver_messages";
 import "../../../src/resources/custom-card-support";
@@ -34,14 +34,14 @@ const setTouchControlsVisibility = (visible: boolean) => {
 let timeOut: number | undefined;

 const playDummyMedia = (viewTitle?: string) => {
-  const loadRequestData = new cast.framework.messages.LoadRequestData();
+  const loadRequestData = new framework.messages.LoadRequestData();
  loadRequestData.autoplay = true;
-  loadRequestData.media = new cast.framework.messages.MediaInformation();
+  loadRequestData.media = new framework.messages.MediaInformation();
  loadRequestData.media.contentId =
    "https://cast.home-assistant.io/images/google-nest-hub.png";
  loadRequestData.media.contentType = "image/jpeg";
-  loadRequestData.media.streamType = cast.framework.messages.StreamType.NONE;
-  const metadata = new cast.framework.messages.GenericMediaMetadata();
+  loadRequestData.media.streamType = framework.messages.StreamType.NONE;
+  const metadata = new framework.messages.GenericMediaMetadata();
  metadata.title = viewTitle;
  loadRequestData.media.metadata = metadata;

@@ -86,10 +86,10 @@ const showMediaPlayer = () => {
  }
 };

-const options = new cast.framework.CastReceiverOptions();
+const options = new framework.CastReceiverOptions();
 options.disableIdleTimeout = true;
 options.customNamespaces = {
-  [CAST_NS]: cast.framework.system.MessageType.JSON,
+  [CAST_NS]: framework.system.MessageType.JSON,
 };

 castContext.addCustomMessageListener(
@@ -98,8 +98,7 @@ castContext.addCustomMessageListener(
  (ev: ReceivedMessage<HassMessage>) => {
    // We received a show Lovelace command, stop media from playing, hide media player and show Lovelace controller
    if (
-      playerManager.getPlayerState() !==
-      cast.framework.messages.PlayerState.IDLE
+      playerManager.getPlayerState() !== framework.messages.PlayerState.IDLE
    ) {
      playerManager.stop();
    } else {
@@ -114,7 +113,7 @@ castContext.addCustomMessageListener(
 const playerManager = castContext.getPlayerManager();

 playerManager.setMessageInterceptor(
-  cast.framework.messages.MessageType.LOAD,
+  framework.messages.MessageType.LOAD,
  (loadRequestData) => {
    if (
      loadRequestData.media.contentId ===
@@ -128,25 +127,24 @@ playerManager.setMessageInterceptor(
    // Special handling if it came from Google Assistant
    if (media.entity) {
      media.contentId = media.entity;
-      media.streamType = cast.framework.messages.StreamType.LIVE;
+      media.streamType = framework.messages.StreamType.LIVE;
      media.contentType = "application/vnd.apple.mpegurl";
      // @ts-ignore
      media.hlsVideoSegmentFormat =
-        cast.framework.messages.HlsVideoSegmentFormat.FMP4;
+        framework.messages.HlsVideoSegmentFormat.FMP4;
    }
    return loadRequestData;
  }
 );

 playerManager.addEventListener(
-  cast.framework.events.EventType.MEDIA_STATUS,
+  framework.events.EventType.MEDIA_STATUS,
  (event) => {
    if (
-      event.mediaStatus?.playerState ===
-        cast.framework.messages.PlayerState.IDLE &&
+      event.mediaStatus?.playerState === framework.messages.PlayerState.IDLE &&
      event.mediaStatus?.idleReason &&
      event.mediaStatus?.idleReason !==
-        cast.framework.messages.IdleReason.INTERRUPTED
+        framework.messages.IdleReason.INTERRUPTED
    ) {
      // media finished or stopped, return to default Lovelace
      showLovelaceController();
@@ -1,7 +1,7 @@
-import { html, TemplateResult } from "lit";
+import { html, nothing } from "lit";
 import { customElement, property, state } from "lit/decorators";
 import { mockHistory } from "../../../../demo/src/stubs/history";
-import { LovelaceConfig } from "../../../../src/data/lovelace";
+import { LovelaceConfig } from "../../../../src/data/lovelace/config/types";
 import {
  MockHomeAssistant,
  provideHass,
@@ -18,9 +18,9 @@ class HcDemo extends HassElement {

  @state() private _lovelaceConfig?: LovelaceConfig;

-  protected render(): TemplateResult {
+  protected render() {
    if (!this._lovelaceConfig) {
-      return html``;
+      return nothing;
    }
    return html`
      <hc-lovelace
@@ -1,7 +1,7 @@
 import { css, CSSResultGroup, html, LitElement, TemplateResult } from "lit";
 import { customElement, property, query } from "lit/decorators";
 import { fireEvent } from "../../../../src/common/dom/fire_event";
-import { LovelaceConfig } from "../../../../src/data/lovelace";
+import { LovelaceConfig } from "../../../../src/data/lovelace/config/types";
 import { Lovelace } from "../../../../src/panels/lovelace/types";
 import "../../../../src/panels/lovelace/views/hui-view";
 import { HomeAssistant } from "../../../../src/types";
@@ -14,7 +14,8 @@ import "./hc-launch-screen";
 class HcLovelace extends LitElement {
  @property({ attribute: false }) public hass!: HomeAssistant;

-  @property({ attribute: false }) public lovelaceConfig!: LovelaceConfig;
+  @property({ attribute: false })
+  public lovelaceConfig!: LovelaceConfig;

  @property() public viewPath?: string | number;

@@ -21,17 +21,27 @@ import {
 import { atLeastVersion } from "../../../../src/common/config/version";
 import { isNavigationClick } from "../../../../src/common/dom/is-navigation-click";
 import {
-  fetchResources,
  getLegacyLovelaceCollection,
  getLovelaceCollection,
+} from "../../../../src/data/lovelace";
+import {
+  isStrategyDashboard,
  LegacyLovelaceConfig,
  LovelaceConfig,
-} from "../../../../src/data/lovelace";
+  LovelaceDashboardStrategyConfig,
+} from "../../../../src/data/lovelace/config/types";
+import { fetchResources } from "../../../../src/data/lovelace/resource";
 import { loadLovelaceResources } from "../../../../src/panels/lovelace/common/load-resources";
 import { HassElement } from "../../../../src/state/hass-element";
 import { castContext } from "../cast_context";
 import "./hc-launch-screen";

+const DEFAULT_CONFIG: LovelaceDashboardStrategyConfig = {
+  strategy: {
+    type: "original-states",
+  },
+};
+
 let resourcesLoaded = false;
@customElement("hc-main")
 export class HcMain extends HassElement {
@@ -91,14 +101,16 @@ export class HcMain extends HassElement {
        .lovelaceConfig=${this._lovelaceConfig}
        .viewPath=${this._lovelacePath}
        .urlPath=${this._urlPath}
-        @config-refresh=${this._generateLovelaceConfig}
+        @config-refresh=${this._generateDefaultLovelaceConfig}
      ></hc-lovelace>
    `;
  }

  protected firstUpdated(changedProps) {
    super.firstUpdated(changedProps);
-    import("../second-load");
+    import("./hc-lovelace");
+    import("../../../../src/resources/ha-style");
+
    window.addEventListener("location-changed", () => {
      const panelPath = `/${this._urlPath || "lovelace"}/`;
      if (location.pathname.startsWith(panelPath)) {
@@ -258,7 +270,6 @@ export class HcMain extends HassElement {
          {
            strategy: {
              type: "energy",
-              options: { show_date_selection: true },
            },
          },
        ],
@@ -281,9 +292,20 @@ export class HcMain extends HassElement {
      // configuration.
      try {
        await llColl.refresh();
-        this._unsubLovelace = llColl.subscribe((lovelaceConfig) =>
-          this._handleNewLovelaceConfig(lovelaceConfig)
-        );
+        this._unsubLovelace = llColl.subscribe(async (rawConfig) => {
+          if (isStrategyDashboard(rawConfig)) {
+            const { generateLovelaceDashboardStrategy } = await import(
+              "../../../../src/panels/lovelace/strategies/get-strategy"
+            );
+            const config = await generateLovelaceDashboardStrategy(
+              rawConfig.strategy,
+              this.hass!
+            );
+            this._handleNewLovelaceConfig(config);
+          } else {
+            this._handleNewLovelaceConfig(rawConfig);
+          }
+        });
      } catch (err: any) {
        if (
          atLeastVersion(this.hass.connection.haVersion, 0, 107) &&
@@ -297,7 +319,7 @@ export class HcMain extends HassElement {
        }
        // Generate a Lovelace config.
        this._unsubLovelace = () => undefined;
-        await this._generateLovelaceConfig();
+        await this._generateDefaultLovelaceConfig();
      }
    }
    if (!resourcesLoaded) {
@@ -306,24 +328,21 @@ export class HcMain extends HassElement {
        ? await fetchResources(this.hass!.connection)
        : (this._lovelaceConfig as LegacyLovelaceConfig).resources;
      if (resources) {
-        loadLovelaceResources(resources, this.hass!.auth.data.hassUrl);
+        loadLovelaceResources(resources, this.hass!);
      }
    }

    this._sendStatus();
  }

-  private async _generateLovelaceConfig() {
+  private async _generateDefaultLovelaceConfig() {
    const { generateLovelaceDashboardStrategy } = await import(
      "../../../../src/panels/lovelace/strategies/get-strategy"
    );
    this._handleNewLovelaceConfig(
      await generateLovelaceDashboardStrategy(
-        {
-          hass: this.hass!,
-          narrow: false,
-        },
-        "original-states"
+        DEFAULT_CONFIG.strategy,
+        this.hass!
      )
    );
  }
@@ -1,3 +0,0 @@
-import "../../../src/resources/ha-style";
-import "../../../src/resources/roboto";
-import "./layout/hc-lovelace";
@@ -1,8 +1,8 @@
-const { createCastConfig } = require("../build-scripts/webpack.js");
-const { isProdBuild, isStatsBuild } = require("../build-scripts/env.js");
+import webpack from "../build-scripts/webpack.cjs";
+import env from "../build-scripts/env.cjs";

-module.exports = createCastConfig({
-  isProdBuild: isProdBuild(),
-  isStatsBuild: isStatsBuild(),
+export default webpack.createCastConfig({
+  isProdBuild: env.isProdBuild(),
+  isStatsBuild: env.isStatsBuild(),
  latestBuild: true,
 });
@@ -8,25 +8,67 @@
      "src": "/static/icons/favicon-192x192.png",
      "sizes": "192x192",
      "type": "image/png",
-      "purpose": "maskable any"
+      "purpose": "any"
    },
    {
      "src": "/static/icons/favicon-384x384.png",
      "sizes": "384x384",
      "type": "image/png",
-      "purpose": "maskable any"
+      "purpose": "any"
    },
    {
      "src": "/static/icons/favicon-512x512.png",
      "sizes": "512x512",
      "type": "image/png",
-      "purpose": "maskable any"
+      "purpose": "any"
    },
    {
      "src": "/static/icons/favicon-1024x1024.png",
      "sizes": "1024x1024",
      "type": "image/png",
-      "purpose": "maskable any"
+      "purpose": "any"
+    },
+    {
+      "src": "/static/icons/maskable_icon-48x48.png",
+      "sizes": "48x48",
+      "type": "image/png",
+      "purpose": "maskable"
+    },
+    {
+      "src": "/static/icons/maskable_icon-72x72.png",
+      "sizes": "72x72",
+      "type": "image/png",
+      "purpose": "maskable"
+    },
+    {
+      "src": "/static/icons/maskable_icon-96x96.png",
+      "sizes": "96x96",
+      "type": "image/png",
+      "purpose": "maskable"
+    },
+    {
+      "src": "/static/icons/maskable_icon-128x128.png",
+      "sizes": "128x128",
+      "type": "image/png",
+      "purpose": "maskable"
+    },
+    {
+      "src": "/static/icons/maskable_icon-192x192.png",
+      "sizes": "192x192",
+      "type": "image/png",
+      "purpose": "maskable"
+    },
+    {
+      "src": "/static/icons/maskable_icon-384x384.png",
+      "sizes": "384x384",
+      "type": "image/png",
+      "purpose": "maskable"
+    },
+    {
+      "src": "/static/icons/maskable_icon-512x512.png",
+      "sizes": "512x512",
+      "type": "image/png",
+      "purpose": "maskable"
    }
  ],
  "lang": "en-US",
@@ -1,3 +1,3 @@
-self.addEventListener("fetch", function(event) {
+self.addEventListener("fetch", (event) => {
  event.respondWith(fetch(event.request));
 });
@@ -1,5 +1,5 @@
-const rollup = require("../build-scripts/rollup.js");
-const env = require("../build-scripts/env.js");
+import rollup from "../build-scripts/rollup.cjs";
+import env from "../build-scripts/env.cjs";

 const config = rollup.createDemoConfig({
  isProdBuild: env.isProdBuild(),
@@ -7,4 +7,4 @@ const config = rollup.createDemoConfig({
  isStatsBuild: env.isStatsBuild(),
 });

-module.exports = { ...config.inputOptions, output: config.outputOptions };
+export default { ...config.inputOptions, output: config.outputOptions };
@@ -3,6 +3,15 @@ import { DemoConfig } from "../types";

 export const demoEntitiesArsaboo: DemoConfig["entities"] = (localize) =>
  convertEntities({
+    "todo.shopping_list": {
+      entity_id: "todo.shopping_list",
+      state: "2",
+      attributes: {
+        supported_features: 15,
+        friendly_name: "Shopping List",
+        icon: "mdi:cart",
+      },
+    },
    "zone.home": {
      entity_id: "zone.home",
      state: "zoning",
@@ -3,6 +3,15 @@ import { DemoConfig } from "../types";

 export const demoEntitiesJimpower: DemoConfig["entities"] = () =>
  convertEntities({
+    "todo.shopping_list": {
+      entity_id: "todo.shopping_list",
+      state: "2",
+      attributes: {
+        supported_features: 15,
+        friendly_name: "Shopping List",
+        icon: "mdi:cart",
+      },
+    },
    "zone.powertec": {
      entity_id: "zone.powertec",
      state: "zoning",
@@ -4,16 +4,11 @@ export const demoThemeJimpower = () => ({
  "primary-color": "#5294E2",
  "label-badge-red": "var(--accent-color)",
  "paper-tabs-selection-bar-color": "green",
-  "paper-slider-knob-color": "var(--accent-color)",
  "light-primary-color": "var(--accent-color)",
  "primary-background-color": "#383C45",
  "primary-text-color": "#FFFFFF",
  "paper-item-selected_-_background-color": "#434954",
-  "paper-slider-active-color": "var(--accent-color)",
  "secondary-background-color": "#383C45",
-  "paper-slider-container-color":
-    "linear-gradient(var(--primary-background-color), var(--secondary-background-color)) no-repeat",
-  "paper-slider-disabled-active-color": "var(--disabled-text-color)",
  "disabled-text-color": "#7F848E",
  "paper-item-icon_-_color": "green",
  "paper-grey-200": "#414A59",
@@ -32,14 +27,10 @@ export const demoThemeJimpower = () => ({
  "switch-unchecked-button-color": "var(--disabled-text-color)",
  "label-badge-border-color": "green",
  "paper-listbox-color": "var(--primary-color)",
-  "paper-slider-disabled-secondary-color": "var(--disabled-text-color)",
  "card-background-color": "#434954",
  "label-badge-text-color": "var(--primary-text-color)",
-  "paper-slider-knob-start-color": "var(--accent-color)",
  "switch-unchecked-track-color": "var(--disabled-text-color)",
  "dark-primary-color": "var(--accent-color)",
-  "paper-slider-secondary-color": "var(--secondary-background-color)",
-  "paper-slider-pin-color": "var(--accent-color)",
  "paper-item-icon-active-color": "#F9C536",
  "accent-color": "#E45E65",
  "table-row-alternative-background-color": "#3E424B",
@@ -3,6 +3,15 @@ import { DemoConfig } from "../types";

 export const demoEntitiesKernehed: DemoConfig["entities"] = () =>
  convertEntities({
+    "todo.shopping_list": {
+      entity_id: "todo.shopping_list",
+      state: "2",
+      attributes: {
+        supported_features: 15,
+        friendly_name: "Shopping List",
+        icon: "mdi:cart",
+      },
+    },
    "zone.anna": {
      entity_id: "zone.anna",
      state: "zoning",
@@ -5,17 +5,12 @@ export const demoThemeKernehed = () => ({
  "primary-color": "#2980b9",
  "label-badge-red": "var(--accent-color)",
  "paper-tabs-selection-bar-color": "green",
-  "paper-slider-knob-color": "var(--accent-color)",
  "primary-text-color": "#FFFFFF",
  "light-primary-color": "var(--accent-color)",
  "primary-background-color": "#222222",
  "sidebar-icon-color": "#777777",
  "paper-item-selected_-_background-color": "#292929",
-  "paper-slider-active-color": "var(--accent-color)",
  "secondary-background-color": "#222222",
-  "paper-slider-container-color":
-    "linear-gradient(var(--primary-background-color), var(--secondary-background-color)) no-repeat",
-  "paper-slider-disabled-active-color": "var(--disabled-text-color)",
  "disabled-text-color": "#777777",
  "paper-item-icon_-_color": "green",
  "paper-grey-200": "#222222",
@@ -33,14 +28,10 @@ export const demoThemeKernehed = () => ({
  "switch-unchecked-button-color": "var(--disabled-text-color)",
  "label-badge-border-color": "green",
  "paper-listbox-color": "#777777",
-  "paper-slider-disabled-secondary-color": "var(--disabled-text-color)",
  "card-background-color": "#292929",
  "label-badge-text-color": "var(--primary-text-color)",
-  "paper-slider-knob-start-color": "var(--accent-color)",
  "switch-unchecked-track-color": "var(--disabled-text-color)",
  "dark-primary-color": "var(--accent-color)",
-  "paper-slider-secondary-color": "var(--secondary-background-color)",
-  "paper-slider-pin-color": "var(--accent-color)",
  "paper-item-icon-active-color": "#b58e31",
  "accent-color": "#2980b9",
  "table-row-alternative-background-color": "#292929",
@@ -3,6 +3,15 @@ import { DemoConfig } from "../types";

 export const demoEntitiesTeachingbirds: DemoConfig["entities"] = () =>
  convertEntities({
+    "todo.shopping_list": {
+      entity_id: "todo.shopping_list",
+      state: "2",
+      attributes: {
+        supported_features: 15,
+        friendly_name: "Shopping List",
+        icon: "mdi:cart",
+      },
+    },
    "sensor.pollen_grabo": {
      entity_id: "sensor.pollen_grabo",
      state: "",
@@ -220,7 +220,8 @@ export const demoLovelaceTeachingbirds: DemoConfig["lovelace"] = () => ({
          state_filter: ["on"],
        },
        {
-          type: "shopping-list",
+          type: "todo-list",
+          entity: "todo.shopping_list",
        },
        {
          entities: [
--- a/Show More
+++ b/Show More