diff --git a/.github/ISSUE_TEMPLATE/bug_report.yml b/.github/ISSUE_TEMPLATE/bug_report.yml
new file mode 100644
index 0000000..1f9baf0
--- /dev/null
+++ b/.github/ISSUE_TEMPLATE/bug_report.yml
@@ -0,0 +1,37 @@
+name: Bug Report
+description: Report a bug
+title: '[Bug] '
+labels: ['bug']
+body:
+  - type: textarea
+    id: description
+    attributes:
+      label: What happened?
+      placeholder: Describe the bug and expected behavior
+    validations:
+      required: true
+
+  - type: textarea
+    id: code
+    attributes:
+      label: Code
+      render: typescript
+      placeholder: Minimal reproduction code
+    validations:
+      required: true
+
+  - type: input
+    id: browser
+    attributes:
+      label: Browser
+      placeholder: 'Chrome 120, Firefox 119, etc.'
+    validations:
+      required: true
+
+  - type: input
+    id: version
+    attributes:
+      label: version
+      placeholder: '0.0.0'
+    validations:
+      required: true
diff --git a/.github/ISSUE_TEMPLATE/feature_request.yml b/.github/ISSUE_TEMPLATE/feature_request.yml
new file mode 100644
index 0000000..f33ba94
--- /dev/null
+++ b/.github/ISSUE_TEMPLATE/feature_request.yml
@@ -0,0 +1,28 @@
+name: Feature Request
+description: Suggest a feature
+title: '[Feature] '
+labels: ['enhancement']
+body:
+  - type: textarea
+    id: problem
+    attributes:
+      label: Problem
+      placeholder: What problem does this solve?
+    validations:
+      required: true
+
+  - type: textarea
+    id: solution
+    attributes:
+      label: Solution
+      placeholder: How should this work?
+    validations:
+      required: true
+
+  - type: textarea
+    id: api
+    attributes:
+      label: Proposed API
+      render: typescript
+    validations:
+      required: false
diff --git a/.github/PULL_REQUEST_TEMPLATE.md b/.github/PULL_REQUEST_TEMPLATE.md
new file mode 100644
index 0000000..24a62ee
--- /dev/null
+++ b/.github/PULL_REQUEST_TEMPLATE.md
@@ -0,0 +1,18 @@
+## What
+
+Brief description of changes.
+
+## Type
+
+- [ ] Bug fix
+- [ ] New feature
+- [ ] Breaking change
+- [ ] Documentation
+
+## Testing
+
+- [ ] Tested in modern browsers
+- [ ] No console errors
+- [ ] Types/doc added
+
+Closes #(issue)
diff --git a/.github/dependabot.yml b/.github/dependabot.yml
new file mode 100644
index 0000000..e2abb7d
--- /dev/null
+++ b/.github/dependabot.yml
@@ -0,0 +1,13 @@
+version: 2
+updates:
+  - package-ecosystem: 'npm'
+    directory: '/'
+    schedule:
+      interval: 'weekly'
+    open-pull-requests-limit: 10
+
+  - package-ecosystem: 'github-actions'
+    directory: '/'
+    schedule:
+      interval: 'weekly'
+    open-pull-requests-limit: 5
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
new file mode 100644
index 0000000..0ce709b
--- /dev/null
+++ b/.github/workflows/ci.yml
@@ -0,0 +1,34 @@
+permissions:
+  contents: read
+name: CI
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+    branches: [main]
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        node-version: [20, 22]
+
+    steps:
+      - uses: actions/checkout@v5
+
+      - name: Setup Node.js ${{ matrix.node-version }}
+        uses: actions/setup-node@v4
+        with:
+          node-version: ${{ matrix.node-version }}
+          cache: 'npm'
+
+      - name: Install dependencies
+        run: npm install
+
+      - name: Lint
+        run: npx eslint . && npx prettier --check **/*.ts
+
+      - name: Build
+        run: npm run build
diff --git a/.github/workflows/deploy-demo.yml b/.github/workflows/deploy-demo.yml
new file mode 100644
index 0000000..96231f2
--- /dev/null
+++ b/.github/workflows/deploy-demo.yml
@@ -0,0 +1,40 @@
+name: Deploy Demo
+
+on:
+  push:
+    branches: [main]
+
+jobs:
+  deploy:
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      pages: write
+      id-token: write
+
+    steps:
+      - uses: actions/checkout@v5
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: 20
+          cache: 'npm'
+
+      - name: Install dependencies
+        run: npm ci
+
+      - name: Build demo
+        run: npm run build
+
+      - name: Setup Pages
+        uses: actions/configure-pages@v5
+
+      - name: Upload artifact
+        uses: actions/upload-pages-artifact@v4
+        with:
+          path: './dist'
+
+      - name: Deploy to GitHub Pages
+        id: deployment
+        uses: actions/deploy-pages@v4
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
new file mode 100644
index 0000000..d643474
--- /dev/null
+++ b/.github/workflows/release.yml
@@ -0,0 +1,39 @@
+name: Release
+
+on:
+  push:
+    tags:
+      - 'v*'
+
+jobs:
+  release:
+    runs-on: ubuntu-latest
+    permissions:
+      contents: write
+    steps:
+      - uses: actions/checkout@v5
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: 20
+          cache: 'npm'
+          registry-url: 'https://registry.npmjs.org'
+
+      - name: Install dependencies
+        run: npm ci
+
+      - name: Build
+        run: npm run build:lib
+
+      - name: Publish to npm
+        run: npm publish
+        env:
+          NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}
+
+      - name: Create GitHub Release
+        uses: softprops/action-gh-release@v2
+        with:
+          name: Release ${{ github.ref_name }}
+          draft: false
+          prerelease: false