diff --git a/.devcontainer/Dockerfile b/.devcontainer/Dockerfile
new file mode 100644
index 0000000000..94218355ff
--- /dev/null
+++ b/.devcontainer/Dockerfile
@@ -0,0 +1,13 @@
+# 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:0-3.9
+
+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"
\ No newline at end of file
diff --git a/.devcontainer/devcontainer.json b/.devcontainer/devcontainer.json
new file mode 100644
index 0000000000..78d39cd415
--- /dev/null
+++ b/.devcontainer/devcontainer.json
@@ -0,0 +1,31 @@
+{
+  "name": "Home Assistant Frontend",
+  "build": {
+    "dockerfile": "Dockerfile",
+    "context": ".."
+  },
+  "appPort": 8123,
+  "context": "..",
+  "postCreateCommand": "script/bootstrap",
+  "extensions": [
+    "github.vscode-pull-request-github",
+    "dbaeumer.vscode-eslint",
+    "ms-vscode.vscode-typescript-tslint-plugin",
+    "esbenp.prettier-vscode",
+    "bierner.lit-html",
+    "runem.lit-plugin",
+    "ms-python.vscode-pylance"
+  ],
+  "settings": {
+    "terminal.integrated.shell.linux": "/bin/bash",
+    "files.eol": "\n",
+    "editor.tabSize": 2,
+    "editor.formatOnPaste": false,
+    "editor.formatOnSave": true,
+    "editor.formatOnType": true,
+    "[typescript]": {
+      "editor.defaultFormatter": "esbenp.prettier-vscode"
+    },
+    "files.trimTrailingWhitespace": true
+  }
+}
diff --git a/.gitignore b/.gitignore
index af590a8ade..74fe1c8f92 100644
--- a/.gitignore
+++ b/.gitignore
@@ -35,3 +35,6 @@ yarn-error.log
 
 #asdf
 .tool-versions
+
+# Home Assistant config
+config
\ No newline at end of file
diff --git a/.vscode/tasks.json b/.vscode/tasks.json
index d23faf6995..c6868baeb0 100644
--- a/.vscode/tasks.json
+++ b/.vscode/tasks.json
@@ -37,6 +37,37 @@
         "instanceLimit": 1
       }
     },
+    {
+      "label": "Develop Supervisor panel",
+      "type": "gulp",
+      "task": "develop-hassio",
+      "problemMatcher": {
+        "owner": "ha-build",
+        "source": "ha-build",
+        "fileLocation": "absolute",
+        "severity": "error",
+        "pattern": [
+          {
+            "regexp": "(SyntaxError): (.+): (.+) \\((\\d+):(\\d+)\\)",
+            "severity": 1,
+            "file": 2,
+            "message": 3,
+            "line": 4,
+            "column": 5
+          }
+        ],
+        "background": {
+          "activeOnStart": true,
+          "beginsPattern": "Changes detected. Starting compilation",
+          "endsPattern": "Build done @"
+        }
+      },
+      "isBackground": true,
+      "group": "build",
+      "runOptions": {
+        "instanceLimit": 1
+      }
+    },
     {
       "label": "Develop Gallery",
       "type": "gulp",
@@ -133,5 +164,45 @@
         "instanceLimit": 1
       }
     },
+    {
+      "label": "Run HA Core in devcontainer",
+      "type": "shell",
+      "command": "script/core",
+      "isBackground": true,
+      "group": {
+        "kind": "build",
+        "isDefault": true
+      },
+      "problemMatcher": [],
+      "runOptions": {
+        "instanceLimit": 1
+      }
+    },
+    {
+      "label": "Run HA Core for Supervisor in devcontainer",
+      "type": "shell",
+      "command": "HASSIO=${input:supervisorHost} HASSIO_TOKEN=${input:supervisorToken} script/core",
+      "isBackground": true,
+      "group": {
+        "kind": "build",
+        "isDefault": true
+      },
+      "problemMatcher": [],
+      "runOptions": {
+        "instanceLimit": 1
+      }
+    }
+  ],
+  "inputs": [
+    {
+      "id": "supervisorHost",
+      "type": "promptString",
+      "description": "The IP of the Supervisor host running the Remote API proxy add-on"
+    },
+    {
+      "id": "supervisorToken",
+      "type": "promptString",
+      "description": "The token for the Remote API proxy add-on"
+    }
   ]
 }
diff --git a/script/core b/script/core
new file mode 100755
index 0000000000..7f45620af3
--- /dev/null
+++ b/script/core
@@ -0,0 +1,55 @@
+#!/bin/sh
+# Helper to start Home Assistant Core inside the devcontainer
+
+# Stop on errors
+set -e
+
+if [ -z "${DEVCONTAINER}" ]; then
+  echo "This task should only run inside a devcontainer, for local install HA Core in a venv."
+  exit 1
+fi
+
+if [ ! -z "${CODESPACES}" ]; then
+  WORKSPACE="/root/workspace/frontend"
+else
+  WORKSPACE="/workspaces/frontend"
+fi
+
+if [ -z $(which hass) ]; then
+  echo "Installing Home Asstant core from dev."
+  python3 -m pip install --upgrade \
+    colorlog \
+    git+git://github.com/home-assistant/home-assistant.git@dev
+fi
+
+if [ ! -d "${WORKSPACE}/config" ]; then
+  echo "Creating default configuration."
+  mkdir -p "${WORKSPACE}/config";
+  hass --script ensure_config -c config
+  echo "demo:
+
+logger:
+  default: info
+  logs:
+    homeassistant.components.frontend: debug
+" >> "${WORKSPACE}/config/configuration.yaml"
+
+  if [ ! -z "${HASSIO}" ]; then
+  echo "
+# frontend:
+#   development_repo: ${WORKSPACE}
+
+hassio:
+  development_repo: ${WORKSPACE}" >> "${WORKSPACE}/config/configuration.yaml"
+  else
+  echo "
+frontend:
+  development_repo: ${WORKSPACE}
+
+# hassio:
+#   development_repo: ${WORKSPACE}" >> "${WORKSPACE}/config/configuration.yaml"
+  fi
+
+fi
+
+hass -c "${WORKSPACE}/config"