diff --git a/.github/workflows/deploy-website.yml b/.github/workflows/deploy-website.yml
new file mode 100644
index 000000000..ea43d27e6
--- /dev/null
+++ b/.github/workflows/deploy-website.yml
@@ -0,0 +1,44 @@
+name: Deploy website
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
+on:
+  push:
+    branches: [main]
+    paths:
+      - "website/**"
+      - ".github/workflows/deploy-website.yml"
+  workflow_dispatch:
+
+permissions:
+  contents: read
+
+jobs:
+  deploy:
+    runs-on: ubuntu-24.04
+    name: Deploy to Cloudflare Pages
+    steps:
+      - uses: actions/checkout@11d5960a326750d5838078e36cf38b85af677262 # v4.4.0
+        with:
+          persist-credentials: false
+
+      - uses: oven-sh/setup-bun@0c5077e51419868618aeaa5fe8019c62421857d6 # v2.2.0
+        with:
+          bun-version: "1.3.14"
+          no-cache: true
+
+      - name: Install website dependencies
+        run: bun --cwd=${{ github.workspace }}/website install --frozen-lockfile
+
+      - name: Build website
+        run: bun --cwd=${{ github.workspace }}/website run build
+
+      - name: Deploy to Cloudflare Pages
+        uses: cloudflare/wrangler-action@ebbaa1584979971c8614a24965b4405ff95890e0 # v4.0.0
+        with:
+          apiToken: ${{ secrets.CLOUDFLARE_API_TOKEN }}
+          accountId: ${{ secrets.CLOUDFLARE_ACCOUNT_ID }}
+          wranglerVersion: "4.121.0"
+          command: pages deploy website/dist --project-name=sverka
diff --git a/README.md b/README.md
index ea14631a6..cd92a8d83 100644
--- a/README.md
+++ b/README.md
@@ -7,6 +7,9 @@
 A composable workflow SDK, local CI runtime, and multi-target compiler
 for software verification.
 
+> **⚠️ Pre-alpha — Work in progress.** Sverka is under active development.
+> APIs may change without notice. Not ready for production use.
+
 [Website](https://sverka.dev) · [Documentation](https://sverka.dev/docs) · [CLI Reference](https://sverka.dev/docs/cli)
 
 </div>
diff --git a/website/src/layouts/Base.astro b/website/src/layouts/Base.astro
index b1e58d9a7..c0958afa7 100644
--- a/website/src/layouts/Base.astro
+++ b/website/src/layouts/Base.astro
@@ -35,6 +35,9 @@ const {
     <meta name="twitter:description" content={description} />
   </head>
   <body>
+    <div class="pre-alpha-banner" role="status">
+      <span aria-hidden="true">⚠️</span> Pre-alpha — Work in progress. APIs may change without notice. Not ready for production use.
+    </div>
     <slot />
     <footer>
       <p>
diff --git a/website/src/styles/global.css b/website/src/styles/global.css
index d0c2ae8cc..741373ef3 100644
--- a/website/src/styles/global.css
+++ b/website/src/styles/global.css
@@ -30,6 +30,16 @@ body {
   flex-direction: column;
 }
 
+.pre-alpha-banner {
+  background: #2a1a0a;
+  border-bottom: 1px solid #4a3a1a;
+  color: #e8a040;
+  text-align: center;
+  padding: 0.5rem 1rem;
+  font-size: 0.85rem;
+  font-weight: 500;
+}
+
 main {
   flex: 1;
   max-width: var(--max-width);