diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
new file mode 100644
index 00000000..6cf45350
--- /dev/null
+++ b/.github/workflows/ci.yml
@@ -0,0 +1,71 @@
+name: CI
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+    branches: [main]
+
+jobs:
+  test-root:
+    name: Test @toppynl/twing
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: pnpm/action-setup@v4
+        with:
+          version: 10.30.0
+
+      - uses: actions/setup-node@v4
+        with:
+          node-version: '20'
+          cache: 'pnpm'
+
+      - name: Install dependencies
+        run: pnpm install --frozen-lockfile
+
+      - name: Build library
+        run: npm run build:lib
+
+      - name: Build test suite
+        run: npm run build:test
+
+      - name: Run tests
+        run: npm test
+
+  test-workspaces:
+    name: Test ${{ matrix.package.filter }}
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        package:
+          - filter: '@toppynl/twing-html-extra'
+            path: packages/html-extra
+          - filter: '@toppynl/twing-components'
+            path: packages/components
+          - filter: '@toppynl/twing-cache-extra'
+            path: packages/cache
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: pnpm/action-setup@v4
+        with:
+          version: 10.30.0
+
+      - uses: actions/setup-node@v4
+        with:
+          node-version: '20'
+          cache: 'pnpm'
+
+      - name: Install dependencies
+        run: pnpm install --frozen-lockfile
+
+      - name: Build root (workspace dependency)
+        run: npm run build:lib
+
+      - name: Build and test ${{ matrix.package.filter }}
+        run: |
+          pnpm --filter="${{ matrix.package.filter }}" run build:test
+          pnpm --filter="${{ matrix.package.filter }}" run test
diff --git a/.github/workflows/release-core.yml b/.github/workflows/release-core.yml
new file mode 100644
index 00000000..64a98a9c
--- /dev/null
+++ b/.github/workflows/release-core.yml
@@ -0,0 +1,103 @@
+name: Release @toppynl/twing
+
+on:
+  workflow_dispatch:
+    inputs:
+      version:
+        description: 'Version to publish (e.g. 8.0.0)'
+        required: true
+        type: string
+      dry_run:
+        description: 'Dry run — build and verify without publishing'
+        required: false
+        type: boolean
+        default: false
+
+jobs:
+  release-core:
+    name: Publish @toppynl/twing@${{ inputs.version }}
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+
+      - uses: pnpm/action-setup@v4
+        with:
+          version: 10.30.0
+
+      - uses: actions/setup-node@v4
+        with:
+          node-version: '20'
+          cache: 'pnpm'
+          registry-url: 'https://registry.npmjs.org'
+
+      - name: Install dependencies
+        run: pnpm install --frozen-lockfile
+
+      - name: Validate version
+        run: |
+          if ! echo "${{ inputs.version }}" | grep -qE '^[0-9]+\.[0-9]+\.[0-9]+(-[a-zA-Z0-9.]+)?$'; then
+            echo "ERROR: '${{ inputs.version }}' is not a valid semver string" >&2
+            exit 1
+          fi
+
+      - name: Update package.json version
+        run: |
+          node -e "
+            const fs = require('fs');
+            const pkg = JSON.parse(fs.readFileSync('package.json', 'utf8'));
+            pkg.version = '${{ inputs.version }}';
+            fs.writeFileSync('package.json', JSON.stringify(pkg, null, 2) + '\n');
+          "
+
+      - name: Build @toppynl/twing
+        env:
+          VERSION: ${{ inputs.version }}
+        run: npm run build:main
+
+      - name: Verify target version
+        run: |
+          TARGET_VERSION=$(node -e "console.log(require('./src/main/target/package.json').version)")
+          if [[ "${TARGET_VERSION}" != "${{ inputs.version }}" ]]; then
+            echo "ERROR: target version ${TARGET_VERSION} != input ${{ inputs.version }}" >&2
+            exit 1
+          fi
+          echo "Verified: src/main/target/package.json@${TARGET_VERSION}"
+
+      - name: Dry run publish
+        if: inputs.dry_run == true
+        run: |
+          cd src/main/target
+          npm publish --access public --dry-run
+          echo "DRY RUN complete — nothing published"
+
+      - name: Publish @toppynl/twing
+        if: inputs.dry_run == false
+        env:
+          NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN_TOPPYNL_ORG }}
+        run: |
+          cd src/main/target
+          npm publish --access public
+
+      - name: Tag and commit
+        if: inputs.dry_run == false
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        run: |
+          git config user.name "github-actions[bot]"
+          git config user.email "github-actions[bot]@users.noreply.github.com"
+          git add package.json
+          git commit -m "chore: bump @toppynl/twing to ${{ inputs.version }} [skip ci]" || true
+          git tag "twing-v${{ inputs.version }}" -m "Release @toppynl/twing@${{ inputs.version }}"
+          git push origin main --follow-tags
+
+      - name: Create GitHub Release
+        if: inputs.dry_run == false
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        run: |
+          gh release create "twing-v${{ inputs.version }}" \
+            --title "@toppynl/twing@${{ inputs.version }}" \
+            --generate-notes \
+            --notes-start-tag "twing-v$(git tag --sort=-version:refname | grep '^twing-v' | sed -n '2p')"
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
new file mode 100644
index 00000000..3776b076
--- /dev/null
+++ b/.github/workflows/release.yml
@@ -0,0 +1,58 @@
+name: Release Workspace Packages
+
+on:
+  push:
+    branches: [main]
+
+permissions:
+  contents: write
+  issues: write
+  pull-requests: write
+
+jobs:
+  release-workspaces:
+    name: Release workspace packages
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+          persist-credentials: false
+
+      - uses: pnpm/action-setup@v4
+        with:
+          version: 10.30.0
+
+      - uses: actions/setup-node@v4
+        with:
+          node-version: '20'
+          cache: 'pnpm'
+          registry-url: 'https://registry.npmjs.org'
+
+      - name: Install dependencies
+        run: pnpm install --frozen-lockfile
+
+      - name: Build root (workspace dependency)
+        run: npm run build:lib
+
+      - name: Release @toppynl/twing-html-extra
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN_TOPPYNL_ORG }}
+          NPM_TOKEN: ${{ secrets.NPM_TOKEN_TOPPYNL_ORG }}
+        run: npx semantic-release --extends ./.releaserc/html-extra.json
+
+      - name: Release @toppynl/twing-components
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN_TOPPYNL_ORG }}
+          NPM_TOKEN: ${{ secrets.NPM_TOKEN_TOPPYNL_ORG }}
+        run: npx semantic-release --extends ./.releaserc/components.json
+
+      - name: Release @toppynl/twing-cache-extra
+        if: hashFiles('packages/cache/package.json') != ''
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN_TOPPYNL_ORG }}
+          NPM_TOKEN: ${{ secrets.NPM_TOKEN_TOPPYNL_ORG }}
+        run: npx semantic-release --extends ./.releaserc/cache.json
diff --git a/.releaserc/cache.json b/.releaserc/cache.json
new file mode 100644
index 00000000..dcea4f13
--- /dev/null
+++ b/.releaserc/cache.json
@@ -0,0 +1,40 @@
+{
+  "extends": "semantic-release-monorepo",
+  "pkgRoot": "packages/cache",
+  "tagFormat": "twing-cache-extra-v${version}",
+  "branches": ["main"],
+  "plugins": [
+    "@semantic-release/commit-analyzer",
+    "@semantic-release/release-notes-generator",
+    [
+      "@semantic-release/changelog",
+      {
+        "changelogFile": "packages/cache/CHANGELOG.md"
+      }
+    ],
+    [
+      "@semantic-release/npm",
+      {
+        "npmPublish": false,
+        "pkgRoot": "packages/cache"
+      }
+    ],
+    [
+      "@semantic-release/exec",
+      {
+        "publishCmd": "NEXT_VERSION=${nextRelease.version} bash scripts/publish-workspaces.sh @toppynl/twing-cache-extra packages/cache"
+      }
+    ],
+    [
+      "@semantic-release/git",
+      {
+        "assets": [
+          "packages/cache/package.json",
+          "packages/cache/CHANGELOG.md"
+        ],
+        "message": "chore(release): @toppynl/twing-cache-extra@${nextRelease.version} [skip ci]"
+      }
+    ],
+    "@semantic-release/github"
+  ]
+}
diff --git a/.releaserc/components.json b/.releaserc/components.json
new file mode 100644
index 00000000..8e10bcb1
--- /dev/null
+++ b/.releaserc/components.json
@@ -0,0 +1,40 @@
+{
+  "extends": "semantic-release-monorepo",
+  "pkgRoot": "packages/components",
+  "tagFormat": "twing-components-v${version}",
+  "branches": ["main"],
+  "plugins": [
+    "@semantic-release/commit-analyzer",
+    "@semantic-release/release-notes-generator",
+    [
+      "@semantic-release/changelog",
+      {
+        "changelogFile": "packages/components/CHANGELOG.md"
+      }
+    ],
+    [
+      "@semantic-release/npm",
+      {
+        "npmPublish": false,
+        "pkgRoot": "packages/components"
+      }
+    ],
+    [
+      "@semantic-release/exec",
+      {
+        "publishCmd": "NEXT_VERSION=${nextRelease.version} bash scripts/publish-workspaces.sh @toppynl/twing-components packages/components"
+      }
+    ],
+    [
+      "@semantic-release/git",
+      {
+        "assets": [
+          "packages/components/package.json",
+          "packages/components/CHANGELOG.md"
+        ],
+        "message": "chore(release): @toppynl/twing-components@${nextRelease.version} [skip ci]"
+      }
+    ],
+    "@semantic-release/github"
+  ]
+}
diff --git a/.releaserc/html-extra.json b/.releaserc/html-extra.json
new file mode 100644
index 00000000..e2c3ceca
--- /dev/null
+++ b/.releaserc/html-extra.json
@@ -0,0 +1,40 @@
+{
+  "extends": "semantic-release-monorepo",
+  "pkgRoot": "packages/html-extra",
+  "tagFormat": "twing-html-extra-v${version}",
+  "branches": ["main"],
+  "plugins": [
+    "@semantic-release/commit-analyzer",
+    "@semantic-release/release-notes-generator",
+    [
+      "@semantic-release/changelog",
+      {
+        "changelogFile": "packages/html-extra/CHANGELOG.md"
+      }
+    ],
+    [
+      "@semantic-release/npm",
+      {
+        "npmPublish": false,
+        "pkgRoot": "packages/html-extra"
+      }
+    ],
+    [
+      "@semantic-release/exec",
+      {
+        "publishCmd": "NEXT_VERSION=${nextRelease.version} bash scripts/publish-workspaces.sh @toppynl/twing-html-extra packages/html-extra"
+      }
+    ],
+    [
+      "@semantic-release/git",
+      {
+        "assets": [
+          "packages/html-extra/package.json",
+          "packages/html-extra/CHANGELOG.md"
+        ],
+        "message": "chore(release): @toppynl/twing-html-extra@${nextRelease.version} [skip ci]"
+      }
+    ],
+    "@semantic-release/github"
+  ]
+}
diff --git a/package.json b/package.json
index 96db402b..7026f6a5 100644
--- a/package.json
+++ b/package.json
@@ -24,13 +24,12 @@
     "prebuild:test:browser": "npm run prebuild:test",
     "test": "node src/test/target/index.cjs && node src/test/target/entry.cjs",
     "test:browser": "browserify src/test/target/index.cjs | tape-run --sandbox=false",
-    "build:main": "(cd src/main && rollup -c) && npm run bundle && cp README.md src/main/target/README.md && cp LICENSE src/main/target/LICENSE",
+    "build:lib": "(cd src/main && rollup -c) && cp README.md src/main/target/README.md && cp LICENSE src/main/target/LICENSE",
+    "build:main": "npm run build:lib && npm run bundle",
     "build:test": "(cd src/test && rollup -c)",
-    "bundle": "browserify src/main/target/index.cjs -g uglifyify -s Twing -o bundle/lib.min.js",
+    "bundle": "mkdir -p bundle && browserify src/main/target/index.cjs -g uglifyify -s Twing -o bundle/lib.min.js",
     "build:workspaces": "pnpm -r --filter=\"./packages/*\" build:main",
-    "test:workspaces": "pnpm -r --filter=\"./packages/*\" test",
-    "changeset": "changeset",
-    "release": "changeset publish"
+    "test:workspaces": "pnpm -r --filter=\"./packages/*\" test"
   },
   "dependencies": {
     "@nightlycommit/rollup-plugin-package-manifest": "^1.0.0-alpha.2",
@@ -66,7 +65,17 @@
     "tape": "^5.6.1",
     "tape-run": "^11.0.0",
     "twig-lexer": "^0.9.0",
-    "uglifyify": "^5.0.2",
-    "@changesets/cli": "^2.27.0"
+    "uglifyify": "^5.0.2"
+  },
+  "devDependencies": {
+    "@semantic-release/changelog": "^6.0.3",
+    "@semantic-release/commit-analyzer": "^13.0.1",
+    "@semantic-release/exec": "^6.0.3",
+    "@semantic-release/git": "^10.0.1",
+    "@semantic-release/github": "^11.0.1",
+    "@semantic-release/npm": "^12.0.1",
+    "@semantic-release/release-notes-generator": "^14.0.3",
+    "semantic-release": "^24.2.3",
+    "semantic-release-monorepo": "^8.0.3"
   }
 }
diff --git a/scripts/publish-workspaces.sh b/scripts/publish-workspaces.sh
new file mode 100755
index 00000000..b4f8315a
--- /dev/null
+++ b/scripts/publish-workspaces.sh
@@ -0,0 +1,21 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+# Usage: scripts/publish-workspaces.sh <pnpm-filter> <package-relative-path>
+# Env:   NEXT_VERSION — set by @semantic-release/exec via ${nextRelease.version}
+
+PACKAGE_FILTER="${1}"
+PACKAGE_PATH="${2}"
+TARGET_DIR="${PACKAGE_PATH}/src/main/target"
+
+if [[ -z "${NEXT_VERSION:-}" ]]; then
+  echo "ERROR: NEXT_VERSION is not set" >&2
+  exit 1
+fi
+
+echo "Publishing ${PACKAGE_FILTER}@${NEXT_VERSION} from ${TARGET_DIR}"
+
+VERSION="${NEXT_VERSION}" pnpm --filter="${PACKAGE_FILTER}" run build:main
+
+cd "${TARGET_DIR}"
+npm publish --access public