diff --git a/build-scripts/gulp/gather-static.js b/build-scripts/gulp/gather-static.js
index 48b90cf029..5b9a668675 100644
--- a/build-scripts/gulp/gather-static.js
+++ b/build-scripts/gulp/gather-static.js
@@ -67,12 +67,6 @@ function copyPolyfills(staticDir) {
   );
 }
 
-function copyLoaderJS(staticDir) {
-  const staticPath = genStaticPath(staticDir);
-  copyFileDir(npmPath("systemjs/dist/s.min.js"), staticPath("js"));
-  copyFileDir(npmPath("systemjs/dist/s.min.js.map"), staticPath("js"));
-}
-
 function copyFonts(staticDir) {
   const staticPath = genStaticPath(staticDir);
   // Local fonts
@@ -140,8 +134,6 @@ gulp.task("copy-static-app", async () => {
   const staticDir = paths.app_output_static;
   // Basic static files
   fs.copySync(polyPath("public"), paths.app_output_root);
-
-  copyLoaderJS(staticDir);
   copyPolyfills(staticDir);
   copyFonts(staticDir);
   copyTranslations(staticDir);
@@ -164,8 +156,6 @@ gulp.task("copy-static-demo", async () => {
   );
   // Copy demo static files
   fs.copySync(path.resolve(paths.demo_dir, "public"), paths.demo_output_root);
-
-  copyLoaderJS(paths.demo_output_static);
   copyPolyfills(paths.demo_output_static);
   copyMapPanel(paths.demo_output_static);
   copyFonts(paths.demo_output_static);
@@ -179,8 +169,6 @@ gulp.task("copy-static-cast", async () => {
   fs.copySync(polyPath("public/static"), paths.cast_output_static);
   // Copy cast static files
   fs.copySync(path.resolve(paths.cast_dir, "public"), paths.cast_output_root);
-
-  copyLoaderJS(paths.cast_output_static);
   copyPolyfills(paths.cast_output_static);
   copyMapPanel(paths.cast_output_static);
   copyFonts(paths.cast_output_static);
diff --git a/package.json b/package.json
index e0419ba084..9e3cd63017 100644
--- a/package.json
+++ b/package.json
@@ -181,7 +181,6 @@
     "@types/luxon": "3.4.2",
     "@types/mocha": "10.0.10",
     "@types/qrcode": "1.5.5",
-    "@types/serve-handler": "6.1.4",
     "@types/sortablejs": "1.15.8",
     "@types/tar": "6.1.13",
     "@types/ua-parser-js": "0.7.39",
@@ -218,16 +217,12 @@
     "lit-analyzer": "2.0.3",
     "lodash.merge": "4.6.2",
     "lodash.template": "4.5.0",
-    "magic-string": "0.30.17",
     "map-stream": "0.0.7",
     "object-hash": "3.0.0",
-    "open": "10.1.0",
     "pinst": "3.0.0",
     "prettier": "3.4.2",
     "rspack-manifest-plugin": "5.0.2",
-    "serve-handler": "6.1.6",
     "sinon": "19.0.2",
-    "systemjs": "6.15.1",
     "tar": "7.4.3",
     "terser-webpack-plugin": "5.3.11",
     "ts-lit-plugin": "2.0.2",
diff --git a/yarn.lock b/yarn.lock
index 6865d9a26c..5652f718c6 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -4851,15 +4851,6 @@ __metadata:
   languageName: node
   linkType: hard
 
-"@types/serve-handler@npm:6.1.4":
-  version: 6.1.4
-  resolution: "@types/serve-handler@npm:6.1.4"
-  dependencies:
-    "@types/node": "npm:*"
-  checksum: 10/c92ae204605659b37202af97cfcc7690be43b9290692c1d6c3c93805b399044fd67573af4eb2e7b1fd975451db6d0d5c6cd2f09b20997209fa3341f345f661e4
-  languageName: node
-  linkType: hard
-
 "@types/serve-index@npm:^1.9.4":
   version: 1.9.4
   resolution: "@types/serve-index@npm:1.9.4"
@@ -6791,13 +6782,6 @@ __metadata:
   languageName: node
   linkType: hard
 
-"content-disposition@npm:0.5.2":
-  version: 0.5.2
-  resolution: "content-disposition@npm:0.5.2"
-  checksum: 10/97c5e7c8c72a0524c5d92866ecd3da28d4596925321aa3252d7ce3122d354b099d73cc1981fec8f24848d74314089928f626af8f9d7b51c3bc625d47f11e1d90
-  languageName: node
-  linkType: hard
-
 "content-disposition@npm:0.5.4":
   version: 0.5.4
   resolution: "content-disposition@npm:0.5.4"
@@ -9274,7 +9258,6 @@ __metadata:
     "@types/luxon": "npm:3.4.2"
     "@types/mocha": "npm:10.0.10"
     "@types/qrcode": "npm:1.5.5"
-    "@types/serve-handler": "npm:6.1.4"
     "@types/sortablejs": "npm:1.15.8"
     "@types/tar": "npm:6.1.13"
     "@types/ua-parser-js": "npm:0.7.39"
@@ -9345,13 +9328,11 @@ __metadata:
     lodash.merge: "npm:4.6.2"
     lodash.template: "npm:4.5.0"
     luxon: "npm:3.5.0"
-    magic-string: "npm:0.30.17"
     map-stream: "npm:0.0.7"
     marked: "npm:15.0.4"
     memoize-one: "npm:6.0.0"
     node-vibrant: "npm:3.2.1-alpha.1"
     object-hash: "npm:3.0.0"
-    open: "npm:10.1.0"
     pinst: "npm:3.0.0"
     prettier: "npm:3.4.2"
     punycode: "npm:2.3.1"
@@ -9360,12 +9341,10 @@ __metadata:
     roboto-fontface: "npm:0.10.0"
     rrule: "npm:2.8.1"
     rspack-manifest-plugin: "npm:5.0.2"
-    serve-handler: "npm:6.1.6"
     sinon: "npm:19.0.2"
     sortablejs: "patch:sortablejs@npm%3A1.15.3#~/.yarn/patches/sortablejs-npm-1.15.3-3235a8f83b.patch"
     stacktrace-js: "npm:2.0.2"
     superstruct: "npm:2.0.2"
-    systemjs: "npm:6.15.1"
     tar: "npm:7.4.3"
     terser-webpack-plugin: "npm:5.3.11"
     tinykeys: "npm:3.0.0"
@@ -10900,15 +10879,6 @@ __metadata:
   languageName: node
   linkType: hard
 
-"magic-string@npm:0.30.17, magic-string@npm:^0.30.12":
-  version: 0.30.17
-  resolution: "magic-string@npm:0.30.17"
-  dependencies:
-    "@jridgewell/sourcemap-codec": "npm:^1.5.0"
-  checksum: 10/2f71af2b0afd78c2e9012a29b066d2c8ba45a9cd0c8070f7fd72de982fb1c403b4e3afdb1dae00691d56885ede66b772ef6bedf765e02e3a7066208fe2fec4aa
-  languageName: node
-  linkType: hard
-
 "magic-string@npm:^0.25.0, magic-string@npm:^0.25.7":
   version: 0.25.9
   resolution: "magic-string@npm:0.25.9"
@@ -10918,6 +10888,15 @@ __metadata:
   languageName: node
   linkType: hard
 
+"magic-string@npm:^0.30.12":
+  version: 0.30.17
+  resolution: "magic-string@npm:0.30.17"
+  dependencies:
+    "@jridgewell/sourcemap-codec": "npm:^1.5.0"
+  checksum: 10/2f71af2b0afd78c2e9012a29b066d2c8ba45a9cd0c8070f7fd72de982fb1c403b4e3afdb1dae00691d56885ede66b772ef6bedf765e02e3a7066208fe2fec4aa
+  languageName: node
+  linkType: hard
+
 "magicast@npm:^0.3.5":
   version: 0.3.5
   resolution: "magicast@npm:0.3.5"
@@ -11073,22 +11052,6 @@ __metadata:
   languageName: node
   linkType: hard
 
-"mime-db@npm:~1.33.0":
-  version: 1.33.0
-  resolution: "mime-db@npm:1.33.0"
-  checksum: 10/b3b89cff1d3569d02280f8d5b3b6e3c6df4dd340647b48228b2624293a73da0a7c784712aec8eac0aaccd353ac04b4d50309ab9f6a87d7ee79b4dca0ebb70ed8
-  languageName: node
-  linkType: hard
-
-"mime-types@npm:2.1.18":
-  version: 2.1.18
-  resolution: "mime-types@npm:2.1.18"
-  dependencies:
-    mime-db: "npm:~1.33.0"
-  checksum: 10/65d69085abda6732d4372e9874018fbe491894ff25f7329b8c8815fe40989599488567e08dcee39f1bb54729c4311fb660195ab551603d1cb97d7f2bf33ca8a2
-  languageName: node
-  linkType: hard
-
 "mime-types@npm:^2.1.12, mime-types@npm:^2.1.31, mime-types@npm:^2.1.35, mime-types@npm:~2.1.17, mime-types@npm:~2.1.24, mime-types@npm:~2.1.34":
   version: 2.1.35
   resolution: "mime-types@npm:2.1.35"
@@ -11144,15 +11107,6 @@ __metadata:
   languageName: node
   linkType: hard
 
-"minimatch@npm:3.1.2, minimatch@npm:^3.1.1, minimatch@npm:^3.1.2":
-  version: 3.1.2
-  resolution: "minimatch@npm:3.1.2"
-  dependencies:
-    brace-expansion: "npm:^1.1.7"
-  checksum: 10/e0b25b04cd4ec6732830344e5739b13f8690f8a012d73445a4a19fbc623f5dd481ef7a5827fde25954cd6026fede7574cc54dc4643c99d6c6b653d6203f94634
-  languageName: node
-  linkType: hard
-
 "minimatch@npm:^10.0.0":
   version: 10.0.1
   resolution: "minimatch@npm:10.0.1"
@@ -11162,6 +11116,15 @@ __metadata:
   languageName: node
   linkType: hard
 
+"minimatch@npm:^3.1.1, minimatch@npm:^3.1.2":
+  version: 3.1.2
+  resolution: "minimatch@npm:3.1.2"
+  dependencies:
+    brace-expansion: "npm:^1.1.7"
+  checksum: 10/e0b25b04cd4ec6732830344e5739b13f8690f8a012d73445a4a19fbc623f5dd481ef7a5827fde25954cd6026fede7574cc54dc4643c99d6c6b653d6203f94634
+  languageName: node
+  linkType: hard
+
 "minimatch@npm:^5.0.1":
   version: 5.1.6
   resolution: "minimatch@npm:5.1.6"
@@ -11722,7 +11685,7 @@ __metadata:
   languageName: node
   linkType: hard
 
-"open@npm:10.1.0, open@npm:^10.0.3":
+"open@npm:^10.0.3":
   version: 10.1.0
   resolution: "open@npm:10.1.0"
   dependencies:
@@ -12039,13 +12002,6 @@ __metadata:
   languageName: node
   linkType: hard
 
-"path-is-inside@npm:1.0.2":
-  version: 1.0.2
-  resolution: "path-is-inside@npm:1.0.2"
-  checksum: 10/0b5b6c92d3018b82afb1f74fe6de6338c4c654de4a96123cb343f2b747d5606590ac0c890f956ed38220a4ab59baddfd7b713d78a62d240b20b14ab801fa02cb
-  languageName: node
-  linkType: hard
-
 "path-key@npm:^3.0.0, path-key@npm:^3.1.0":
   version: 3.1.1
   resolution: "path-key@npm:3.1.1"
@@ -12110,13 +12066,6 @@ __metadata:
   languageName: node
   linkType: hard
 
-"path-to-regexp@npm:3.3.0":
-  version: 3.3.0
-  resolution: "path-to-regexp@npm:3.3.0"
-  checksum: 10/8d256383af8db66233ee9027cfcbf8f5a68155efbb4f55e784279d3ab206dcaee554ddb72ff0dae97dd2882af9f7fa802634bb7cffa2e796927977e31b829259
-  languageName: node
-  linkType: hard
-
 "path-to-regexp@npm:^8.1.0":
   version: 8.1.0
   resolution: "path-to-regexp@npm:8.1.0"
@@ -12442,13 +12391,6 @@ __metadata:
   languageName: node
   linkType: hard
 
-"range-parser@npm:1.2.0":
-  version: 1.2.0
-  resolution: "range-parser@npm:1.2.0"
-  checksum: 10/1a561fef1feae1cee3a3cb2440d4d9d3ab96cf2eebaf0d3a5cf06aecf91bc869f273ca0e2f05f73a4c530e751e4af0ed2723b7b86aeef296e3eaea7cfd0a5bfb
-  languageName: node
-  linkType: hard
-
 "range-parser@npm:^1.2.1, range-parser@npm:~1.2.1":
   version: 1.2.1
   resolution: "range-parser@npm:1.2.1"
@@ -13108,21 +13050,6 @@ __metadata:
   languageName: node
   linkType: hard
 
-"serve-handler@npm:6.1.6":
-  version: 6.1.6
-  resolution: "serve-handler@npm:6.1.6"
-  dependencies:
-    bytes: "npm:3.0.0"
-    content-disposition: "npm:0.5.2"
-    mime-types: "npm:2.1.18"
-    minimatch: "npm:3.1.2"
-    path-is-inside: "npm:1.0.2"
-    path-to-regexp: "npm:3.3.0"
-    range-parser: "npm:1.2.0"
-  checksum: 10/7e7d93eb7e69fcd9f9c5afc2ef2b46cb0072b4af13cbabef9bca725afb350ddae6857d8c8be2c256f7ce1f7677c20347801399c11caa5805c0090339f894e8f2
-  languageName: node
-  linkType: hard
-
 "serve-index@npm:^1.9.1":
   version: 1.9.1
   resolution: "serve-index@npm:1.9.1"
@@ -13878,13 +13805,6 @@ __metadata:
   languageName: node
   linkType: hard
 
-"systemjs@npm:6.15.1":
-  version: 6.15.1
-  resolution: "systemjs@npm:6.15.1"
-  checksum: 10/9454c32515cdf7b033cac547233b161d6154abc020a1a97afc8654a01d63cf2bc51101869807aa7f8529aae98475a2cb4522c1e31da6d33832c8e12f00ee4e18
-  languageName: node
-  linkType: hard
-
 "tapable@npm:2.2.1, tapable@npm:^2.2.0":
   version: 2.2.1
   resolution: "tapable@npm:2.2.1"