diff --git a/.github/workflows/node.js.yml b/.github/workflows/node.js.yml
index b7839ebd..ab5b9c5c 100644
--- a/.github/workflows/node.js.yml
+++ b/.github/workflows/node.js.yml
@@ -1,12 +1,434 @@
-# This workflow will do a clean installation of node dependencies, cache/restore them, build the source code and run tests across different versions of node
-# For more information see: https://docs.github.com/en/actions/automating-builds-and-tests/building-and-testing-nodejs
-
-name: Node.js CI
+name: Build
 
 on: [push, pull_request]
+  # push:
+  #   branches:
+  #     - main
+  # pull_request:
+  #   branches:
+  #     - main
+
+# Cancel in-progress runs for pull requests when developers push
+# additional changes, and serialize builds in branches.
+# https://docs.github.com/en/actions/using-jobs/using-concurrency#example-using-concurrency-to-cancel-any-in-progress-job-or-run
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: ${{ github.event_name == 'pull_request' }}
+
+# Note: if: success() is used in several jobs -
+# this ensures that it only executes if all previous jobs succeeded.
+
+# if: steps.cache-node-modules.outputs.cache-hit != 'true'
+# will skip running `yarn install` if it successfully fetched from cache
 
 jobs:
-  Hello-World-Job:
-      runs-on: codebuild-SageMakerCodeEditor-${{ github.run_id }}-${{ github.run_attempt }}
-      steps:
-        - run: echo "Hello World!"
+  prettier:
+    name: Format with Prettier
+    runs-on: ubuntu-20.04
+    timeout-minutes: 5
+    steps:
+      - name: Checkout repo
+        uses: actions/checkout@v4
+
+      - name: Run prettier with actionsx/prettier
+        uses: actionsx/prettier@v3
+        with:
+          args: --check --loglevel=warn .
+
+  doctoc:
+    name: Doctoc markdown files
+    runs-on: ubuntu-20.04
+    timeout-minutes: 5
+    steps:
+      - name: Checkout repo
+        uses: actions/checkout@v4
+
+      - name: Get changed files
+        id: changed-files
+        uses: tj-actions/changed-files@v44
+        with:
+          files: |
+            docs/**
+
+      - name: Install Node.js
+        if: steps.changed-files.outputs.any_changed == 'true'
+        uses: actions/setup-node@v4
+        with:
+          node-version-file: .node-version
+          cache: "yarn"
+
+      - name: Install doctoc
+        run: yarn global add doctoc@2.2.1
+
+      - name: Run doctoc
+        if: steps.changed-files.outputs.any_changed == 'true'
+        run: yarn doctoc
+
+  lint-helm:
+    name: Lint Helm chart
+    runs-on: ubuntu-20.04
+    timeout-minutes: 5
+    steps:
+      - name: Checkout repo
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 2
+
+      - name: Get changed files
+        id: changed-files
+        uses: tj-actions/changed-files@v44
+        with:
+          files: |
+            ci/helm-chart/**
+
+      - name: Install helm
+        if: steps.changed-files.outputs.any_changed == 'true'
+        uses: azure/setup-helm@v3.5
+        with:
+          token: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Install helm kubeval plugin
+        if: steps.changed-files.outputs.any_changed == 'true'
+        run: helm plugin install https://github.com/instrumenta/helm-kubeval
+
+      - name: Lint Helm chart
+        if: steps.changed-files.outputs.any_changed == 'true'
+        run: helm kubeval ci/helm-chart
+
+  lint-ts:
+    name: Lint TypeScript files
+    runs-on: ubuntu-20.04
+    timeout-minutes: 5
+    steps:
+      - name: Checkout repo
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 2
+
+      - name: Get changed files
+        id: changed-files
+        uses: tj-actions/changed-files@v44
+        with:
+          files: |
+            **/*.ts
+            **/*.js
+          files_ignore: |
+            lib/vscode/**
+
+      - name: Install Node.js
+        if: steps.changed-files.outputs.any_changed == 'true'
+        uses: actions/setup-node@v4
+        with:
+          node-version-file: .node-version
+
+      - name: Fetch dependencies from cache
+        if: steps.changed-files.outputs.any_changed == 'true'
+        id: cache-node-modules
+        uses: actions/cache@v4
+        with:
+          path: "**/node_modules"
+          key: yarn-build-${{ hashFiles('**/yarn.lock') }}
+          restore-keys: |
+            yarn-build-
+
+      - name: Install dependencies
+        if: steps.changed-files.outputs.any_changed == 'true' && steps.cache-node-modules.outputs.cache-hit != 'true'
+        run: SKIP_SUBMODULE_DEPS=1 yarn --frozen-lockfile
+
+      - name: Lint TypeScript files
+        if: steps.changed-files.outputs.any_changed == 'true'
+        run: yarn lint:ts
+
+  lint-actions:
+    name: Lint GitHub Actions
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout repo
+        uses: actions/checkout@v4
+      - name: Check workflow files
+        run: |
+          bash <(curl https://raw.githubusercontent.com/rhysd/actionlint/7fdc9630cc360ea1a469eed64ac6d78caeda1234/scripts/download-actionlint.bash)
+          ./actionlint -color -shellcheck= -ignore "set-output"
+        shell: bash
+
+  test-unit:
+    name: Run unit tests
+    runs-on: ubuntu-20.04
+    timeout-minutes: 5
+    steps:
+      - name: Checkout repo
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 2
+
+      - name: Get changed files
+        id: changed-files
+        uses: tj-actions/changed-files@v44
+        with:
+          files: |
+            **/*.ts
+          files_ignore: |
+            lib/vscode/**
+
+      - name: Install Node.js
+        if: steps.changed-files.outputs.any_changed == 'true'
+        uses: actions/setup-node@v4
+        with:
+          node-version-file: .node-version
+
+      - name: Fetch dependencies from cache
+        if: steps.changed-files.outputs.any_changed == 'true'
+        id: cache-node-modules
+        uses: actions/cache@v4
+        with:
+          path: "**/node_modules"
+          key: yarn-build-${{ hashFiles('**/yarn.lock') }}
+          restore-keys: |
+            yarn-build-
+
+      - name: Install dependencies
+        if: steps.changed-files.outputs.any_changed == 'true' && steps.cache-node-modules.outputs.cache-hit != 'true'
+        run: SKIP_SUBMODULE_DEPS=1 yarn --frozen-lockfile
+
+      - name: Run unit tests
+        if: steps.changed-files.outputs.any_changed == 'true'
+        run: yarn test:unit
+
+      - name: Upload coverage report to Codecov
+        uses: codecov/codecov-action@v4
+        with:
+          token: ${{ secrets.CODECOV_TOKEN }}
+        if: success()
+
+  build:
+    name: Build code-server
+    runs-on: ubuntu-20.04
+    timeout-minutes: 60
+    env:
+      CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}
+    steps:
+      - name: Checkout repo
+        uses: actions/checkout@v4
+        with:
+          submodules: true
+
+      - name: Install system dependencies
+        run: sudo apt update && sudo apt install -y libkrb5-dev
+
+      - name: Install quilt
+        uses: awalsh128/cache-apt-pkgs-action@latest
+        with:
+          packages: quilt
+          version: 1.0
+
+      - name: Patch Code
+        run: quilt push -a
+
+      - name: Install Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version-file: .node-version
+
+      # node-gyp is missing in (at least) npm 9.8.1.
+      # TODO: Remove once we update to npm>=10?
+      - name: Install node-gyp
+        run: npm install -g node-gyp
+
+      - name: Fetch dependencies from cache
+        id: cache-node-modules
+        uses: actions/cache@v4
+        with:
+          path: "**/node_modules"
+          key: yarn-build-code-server-${{ hashFiles('**/yarn.lock') }}
+          restore-keys: |
+            yarn-build-code-server-
+
+      - name: Install dependencies
+        if: steps.cache-node-modules.outputs.cache-hit != 'true'
+        run: yarn --frozen-lockfile
+
+      - name: Build code-server
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        run: yarn build
+
+      # Get Code's git hash.  When this changes it means the content is
+      # different and we need to rebuild.
+      - name: Get latest lib/vscode rev
+        id: vscode-rev
+        run: echo "rev=$(git rev-parse HEAD:./lib/vscode)" >> $GITHUB_OUTPUT
+
+      # We need to rebuild when we have a new version of Code, when any of
+      # the patches changed, or when the code-server version changes (since
+      # it gets embedded into the code).  Use VSCODE_CACHE_VERSION to
+      # force a rebuild.
+      - name: Fetch prebuilt Code package from cache
+        id: cache-vscode
+        uses: actions/cache@v4
+        with:
+          path: lib/vscode-reh-web-*
+          key: vscode-reh-package-${{ secrets.VSCODE_CACHE_VERSION }}-${{ steps.vscode-rev.outputs.rev }}-${{ hashFiles('patches/*.diff', 'ci/build/build-vscode.sh') }}
+
+      - name: Build vscode
+        env:
+          VERSION: "0.0.0"
+        if: steps.cache-vscode.outputs.cache-hit != 'true'
+        run: yarn build:vscode
+
+      # The release package does not contain any native modules
+      # and is neutral to architecture/os/libc version.
+      - name: Create release package
+        run: yarn release
+        if: success()
+
+      # https://github.com/actions/upload-artifact/issues/38
+      - name: Compress release package
+        run: tar -czf package.tar.gz release
+
+      - name: Upload npm package artifact
+        uses: actions/upload-artifact@v4
+        with:
+          name: npm-package
+          path: ./package.tar.gz
+
+  test-e2e:
+    name: Run e2e tests
+    needs: build
+    runs-on: ubuntu-20.04
+    timeout-minutes: 25
+    steps:
+      - name: Checkout repo
+        uses: actions/checkout@v4
+
+      - name: Install system dependencies
+        run: sudo apt update && sudo apt install -y libkrb5-dev
+
+      - name: Install Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version-file: .node-version
+
+      - name: Fetch dependencies from cache
+        id: cache-node-modules
+        uses: actions/cache@v4
+        with:
+          path: "**/node_modules"
+          key: yarn-build-${{ hashFiles('**/yarn.lock') }}
+          restore-keys: |
+            yarn-build-
+
+      - name: Download npm package
+        uses: actions/download-artifact@v4
+        with:
+          name: npm-package
+
+      - name: Decompress npm package
+        run: tar -xzf package.tar.gz
+
+      - name: Install release package dependencies
+        run: cd release && npm install --unsafe-perm --omit=dev
+
+      - name: Install dependencies
+        if: steps.cache-node-modules.outputs.cache-hit != 'true'
+        run: SKIP_SUBMODULE_DEPS=1 yarn --frozen-lockfile
+
+      - name: Install Playwright OS dependencies
+        run: |
+          ./test/node_modules/.bin/playwright install-deps
+          ./test/node_modules/.bin/playwright install
+
+      - name: Run end-to-end tests
+        run: CODE_SERVER_TEST_ENTRY=./release yarn test:e2e
+
+      - name: Upload test artifacts
+        if: always()
+        uses: actions/upload-artifact@v4
+        with:
+          name: failed-test-videos
+          path: ./test/test-results
+
+      - name: Remove release packages and test artifacts
+        run: rm -rf ./release ./test/test-results
+
+  test-e2e-proxy:
+    name: Run e2e tests behind proxy
+    needs: build
+    runs-on: ubuntu-20.04
+    timeout-minutes: 25
+    steps:
+      - name: Checkout repo
+        uses: actions/checkout@v4
+
+      - name: Install system dependencies
+        run: sudo apt update && sudo apt install -y libkrb5-dev
+
+      - name: Install Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version-file: .node-version
+
+      - name: Fetch dependencies from cache
+        id: cache-node-modules
+        uses: actions/cache@v4
+        with:
+          path: "**/node_modules"
+          key: yarn-build-${{ hashFiles('**/yarn.lock') }}
+          restore-keys: |
+            yarn-build-
+
+      - name: Download npm package
+        uses: actions/download-artifact@v4
+        with:
+          name: npm-package
+
+      - name: Decompress npm package
+        run: tar -xzf package.tar.gz
+
+      - name: Install release package dependencies
+        run: cd release && npm install --unsafe-perm --omit=dev
+
+      - name: Install dependencies
+        if: steps.cache-node-modules.outputs.cache-hit != 'true'
+        run: SKIP_SUBMODULE_DEPS=1 yarn --frozen-lockfile
+
+      - name: Install Playwright OS dependencies
+        run: |
+          ./test/node_modules/.bin/playwright install-deps
+          ./test/node_modules/.bin/playwright install
+
+      - name: Cache Caddy
+        uses: actions/cache@v4
+        id: caddy-cache
+        with:
+          path: |
+            ~/.cache/caddy
+          key: cache-caddy-2.5.2
+
+      - name: Install Caddy
+        env:
+          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        if: steps.caddy-cache.outputs.cache-hit != 'true'
+        run: |
+          gh release download v2.5.2 --repo caddyserver/caddy --pattern "caddy_2.5.2_linux_amd64.tar.gz"
+          mkdir -p ~/.cache/caddy
+          tar -xzf caddy_2.5.2_linux_amd64.tar.gz --directory ~/.cache/caddy
+
+      - name: Start Caddy
+        run: sudo ~/.cache/caddy/caddy start --config ./ci/Caddyfile
+
+      - name: Run end-to-end tests
+        run: CODE_SERVER_TEST_ENTRY=./release yarn test:e2e:proxy --global-timeout 840000
+
+      - name: Stop Caddy
+        if: always()
+        run: sudo ~/.cache/caddy/caddy stop --config ./ci/Caddyfile
+
+      - name: Upload test artifacts
+        if: always()
+        uses: actions/upload-artifact@v4
+        with:
+          name: failed-test-videos-proxy
+          path: ./test/test-results
+
+      - name: Remove release packages and test artifacts
+        run: rm -rf ./release ./test/test-results
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