diff --git a/.github/workflows/MainDistributionPipeline.yml b/.github/workflows/MainDistributionPipeline.yml
index 0da6476..3af1d56 100644
--- a/.github/workflows/MainDistributionPipeline.yml
+++ b/.github/workflows/MainDistributionPipeline.yml
@@ -16,7 +16,7 @@ jobs:
     name: Build extension binaries
     uses: duckdb/extension-ci-tools/.github/workflows/_extension_distribution.yml@v1.5-variegata
     with:
-      duckdb_version: v1.5.2
+      duckdb_version: v1.5.3
       ci_tools_version: v1.5-variegata
       extension_name: quackscale
       extra_toolchains: 'go'
@@ -27,7 +27,7 @@ jobs:
     name: Code Quality Check
     uses: duckdb/extension-ci-tools/.github/workflows/_extension_code_quality.yml@v1.5-variegata
     with:
-      duckdb_version: v1.5.2
+      duckdb_version: v1.5.3
       ci_tools_version: v1.5-variegata
       extension_name: quackscale
       format_checks: 'format;tidy'
diff --git a/.github/workflows/Release.yml b/.github/workflows/Release.yml
index b37cb86..0f9a9b6 100644
--- a/.github/workflows/Release.yml
+++ b/.github/workflows/Release.yml
@@ -1,28 +1,164 @@
-# Build a Linux DuckDB binary with quackscale embedded and attach it to the GitHub release.
-# E2e workflows download this artifact instead of compiling from source.
+# Publish unsigned quackscale loadable binaries to GitHub Pages (INSTALL FROM …)
+# and attach a linux QuackTail tarball (duckdb + extension) to GitHub Releases.
+#
+# One-time setup: repo Settings → Pages → Build and deployment → Source: GitHub Actions.
+#
+# Layout after deploy:
+#   https://quackscience.github.io/duckdb-quackscale/v1.5.3/linux_amd64/quackscale.duckdb_extension.gz
+#
+# Users:
+#   SET allow_unsigned_extensions = true;
+#   INSTALL quackscale FROM 'https://quackscience.github.io/duckdb-quackscale';
+#   LOAD quackscale;
+#
+# Note: deploy-pages replaces the whole site each run (one DuckDB version hosted).
 name: Release
 
 on:
   release:
     types: [published]
+  workflow_dispatch:
+    inputs:
+      release_tag:
+        description: 'Git tag for QuackTail linux tarball (manual runs; optional)'
+        required: false
+        type: string
+      skip_pages:
+        description: 'Skip GitHub Pages packaging and deploy'
+        required: false
+        default: false
+        type: boolean
+      skip_tarball:
+        description: 'Skip QuackTail linux tarball upload'
+        required: false
+        default: false
+        type: boolean
 
-permissions:
-  contents: write
+concurrency:
+  group: pages
+  cancel-in-progress: false
 
 env:
+  EXT_NAME: quackscale
   DUCKDB_VERSION: v1.5.3
   RELEASE_ASSET: quacktail-linux-amd64
+  PAGES_BASE_URL: https://quackscience.github.io/duckdb-quackscale
 
 jobs:
-  build-linux:
-    name: Build QuackTail linux amd64
+  build:
+    name: Build extension binaries
+    uses: duckdb/extension-ci-tools/.github/workflows/_extension_distribution.yml@v1.5-variegata
+    with:
+      duckdb_version: v1.5.3
+      ci_tools_version: v1.5-variegata
+      extension_name: quackscale
+      extra_toolchains: go
+      exclude_archs: 'windows_amd64;windows_arm64;windows_amd64_mingw;wasm_mvp;wasm_eh;wasm_threads;osx_amd64'
+
+  package-pages:
+    name: Package extension repository
+    runs-on: ubuntu-latest
+    needs: build
+    if: github.event_name == 'release' || inputs.skip_pages != true
+    steps:
+      - name: Download build artifacts
+        uses: actions/download-artifact@v4
+        with:
+          path: artifacts
+          pattern: ${{ env.EXT_NAME }}-${{ env.DUCKDB_VERSION }}-extension-*
+
+      - name: Assemble GitHub Pages tree
+        shell: bash
+        run: |
+          set -euo pipefail
+          shopt -s nullglob
+          prefix="${EXT_NAME}-${DUCKDB_VERSION}-extension-"
+          found=0
+          mkdir -p _site
+          for dir in artifacts/${prefix}*/; do
+            arch="$(basename "$dir")"
+            arch="${arch#${prefix}}"
+            src="${dir}${EXT_NAME}.duckdb_extension"
+            if [[ ! -f "$src" ]]; then
+              echo "::warning::no ${EXT_NAME}.duckdb_extension in ${dir}, skipping ${arch}"
+              continue
+            fi
+            out="_site/${DUCKDB_VERSION}/${arch}"
+            mkdir -p "$out"
+            cp "$src" work.bin
+            truncate -s -256 work.bin
+            dd if=/dev/zero bs=256 count=1 status=none >> work.bin
+            gzip -n < work.bin > "${out}/${EXT_NAME}.duckdb_extension.gz"
+            rm -f work.bin
+            echo "packaged ${arch}"
+            found=$((found + 1))
+          done
+          if [[ "$found" -eq 0 ]]; then
+            echo "::error::no extension binaries found to package"
+            exit 1
+          fi
+          echo "Packaged ${found} platform(s) for ${DUCKDB_VERSION}"
+
+      - name: Write landing page
+        shell: bash
+        env:
+          PAGES_BASE_URL: ${{ env.PAGES_BASE_URL }}
+          EXT_NAME: ${{ env.EXT_NAME }}
+          DUCKDB_VERSION: ${{ env.DUCKDB_VERSION }}
+        run: |
+          set -euo pipefail
+          {
+            echo '<!DOCTYPE html>'
+            echo '<html lang="en"><head><meta charset="utf-8"><title>quackscale extension repository</title></head><body>'
+            echo '<h1>quackscale</h1>'
+            echo "<p>Unsigned DuckDB extension repository. Requires DuckDB ${DUCKDB_VERSION}.</p>"
+            echo '<pre>SET allow_unsigned_extensions = true;'
+            echo "INSTALL ${EXT_NAME} FROM '${PAGES_BASE_URL}';"
+            echo "LOAD ${EXT_NAME};</pre>"
+            echo '<h2>Available binaries</h2><ul>'
+            while IFS= read -r rel; do
+              echo "  <li><a href=\"${rel}\">${rel}</a></li>"
+            done < <(cd _site && find . -name '*.duckdb_extension.gz' | sort | sed 's|^\./||')
+            echo '</ul></body></html>'
+          } > _site/index.html
+
+      - name: Upload Pages artifact
+        uses: actions/upload-pages-artifact@v3
+        with:
+          path: _site
+
+  deploy-pages:
+    name: Deploy to GitHub Pages
+    runs-on: ubuntu-latest
+    needs: package-pages
+    if: github.event_name == 'release' || inputs.skip_pages != true
+    permissions:
+      pages: write
+      id-token: write
+    environment:
+      name: github-pages
+      url: ${{ steps.deployment.outputs.page_url }}
+    steps:
+      - name: Deploy to GitHub Pages
+        id: deployment
+        uses: actions/deploy-pages@v4
+
+  build-quacktail-bundle:
+    name: Build QuackTail linux amd64 tarball
     runs-on: ubuntu-latest
     timeout-minutes: 90
+    if: >-
+      (github.event_name == 'release') ||
+      (github.event_name == 'workflow_dispatch' && inputs.skip_tarball != true && inputs.release_tag != '')
+    permissions:
+      contents: write
+    env:
+      RELEASE_TAG: ${{ github.event.release.tag_name || inputs.release_tag }}
 
     steps:
       - uses: actions/checkout@v4
         with:
-          ref: ${{ github.event.release.tag_name }}
+          ref: ${{ github.event.release.tag_name || inputs.release_tag || github.ref }}
           submodules: recursive
 
       - uses: actions/setup-go@v5
@@ -51,15 +187,15 @@ jobs:
           cp build/release/extension/quackscale/quackscale.duckdb_extension \
             "dist/${RELEASE_ASSET}/extension/quackscale/"
           {
-            echo "tag=${{ github.event.release.tag_name }}"
+            echo "tag=${RELEASE_TAG}"
             echo "duckdb=${{ env.DUCKDB_VERSION }}"
             echo "commit=${{ github.sha }}"
           } > "dist/${RELEASE_ASSET}/VERSION"
-          tar -czf "dist/${RELEASE_ASSET}-${{ github.event.release.tag_name }}.tar.gz" -C dist "${RELEASE_ASSET}"
+          tar -czf "dist/${RELEASE_ASSET}-${RELEASE_TAG}.tar.gz" -C dist "${RELEASE_ASSET}"
           ls -lh dist/
 
       - name: Upload release assets
         uses: softprops/action-gh-release@v2
         with:
-          tag_name: ${{ github.event.release.tag_name }}
+          tag_name: ${{ env.RELEASE_TAG }}
           files: dist/*.tar.gz
diff --git a/README.md b/README.md
index 26169ec..8cc19f2 100644
--- a/README.md
+++ b/README.md
@@ -137,6 +137,34 @@ Do **not** copy the random `auth_token` from each `CALL quack_serve`. Use a flee
 
 ---
 
+## Install
+
+QuackScale ships in two forms: a **loadable extension** (stock DuckDB + `INSTALL`) and a **QuackTail release bundle** (prebuilt `duckdb` binary for Linux CI and compose).
+
+### Loadable extension (GitHub Pages)
+
+Published on each [release](https://github.com/quackscience/duckdb-quackscale/releases) to a DuckDB custom extension repository. Requires **DuckDB v1.5.3** and unsigned extension support:
+
+```sql
+SET allow_unsigned_extensions = true;
+INSTALL quackscale FROM 'https://quackscience.github.io/duckdb-quackscale';
+LOAD quackscale;
+```
+
+CLI equivalent: `duckdb -unsigned` then `LOAD quackscale;`
+
+Install [Quack](https://duckdb.org/docs/current/quack/overview) from core separately (`INSTALL quack FROM core; LOAD quack;`) for `quack_serve`, `ATTACH`, and `quack_query`.
+
+### QuackTail release bundle (GitHub Releases)
+
+Linux amd64 tarball with `duckdb` and `extension/quackscale/quackscale.duckdb_extension` — used by [Headscale e2e CI](.github/workflows/headscale-e2e.yml) and `examples/` with `BUILD_FROM_SOURCE=0`. Download from [Releases](https://github.com/quackscience/duckdb-quackscale/releases) (`quacktail-linux-amd64-*.tar.gz`).
+
+### Build from source
+
+See [docs/DEVELOPMENT.md](docs/DEVELOPMENT.md) for submodules, Go/libtailscale, and `make release`.
+
+---
+
 ## Quick start
 
 ### Server
diff --git a/docs/DEVELOPMENT.md b/docs/DEVELOPMENT.md
index 82d5a47..13d40bc 100644
--- a/docs/DEVELOPMENT.md
+++ b/docs/DEVELOPMENT.md
@@ -72,12 +72,28 @@ When bumping the DuckDB target:
 |----------|---------|---------|
 | [headscale-e2e.yml](../.github/workflows/headscale-e2e.yml) | **Manual only** | Release-binary two-node e2e (no source build) |
 | [headscale-integration.yml](../.github/workflows/headscale-integration.yml) | PR | Source build + Headscale smoke |
-| [Release.yml](../.github/workflows/Release.yml) | Release published | Build linux release tarball |
+| [Release.yml](../.github/workflows/Release.yml) | Release published / manual | Extension repo → GitHub Pages; linux QuackTail tarball → Releases |
 | [libtailscale-integration.yml](../.github/workflows/libtailscale-integration.yml) | PR | libtailscale `go test` |
 | [MainDistributionPipeline.yml](../.github/workflows/MainDistributionPipeline.yml) | PR | Extension distribution CI |
 
 **E2e never runs on push/PR** and never compiles DuckDB in CI — use `workflow_dispatch` on `headscale-e2e` with a release tag. Full DuckLake compose demo is local dev only (`scripts/ci_compose_e2e.sh`).
 
+### Release and GitHub Pages
+
+On **Release published** (or manual **Release** workflow):
+
+1. **build** — extension-ci-tools matrix (`quackscale` per platform, same exclusions as MainDistributionPipeline).
+2. **package-pages** + **deploy-pages** — unsigned `.duckdb_extension.gz` under `v1.5.3/{arch}/` at `https://quackscience.github.io/duckdb-quackscale`.
+3. **build-quacktail-bundle** — linux amd64 `quacktail-linux-amd64-{tag}.tar.gz` attached to the GitHub Release.
+
+**One-time repo setup:** Settings → Pages → Build and deployment → **Source: GitHub Actions**.
+
+**Manual Pages-only test:** Actions → Release → Run workflow → leave `release_tag` empty, uncheck skip_pages.
+
+**Manual tarball test:** provide an existing git tag in `release_tag`, uncheck skip_tarball.
+
+Each Pages deploy replaces the whole site (one DuckDB version hosted). To host multiple DuckDB versions, accumulate version directories in a follow-up change.
+
 ## Roadmap (selected)
 
 | Item | Status |
@@ -88,7 +104,7 @@ When bumping the DuckDB target:
 | `ATTACH … TYPE quacktail_lake` (Tier 3 native catalog) | Planned |
 | `ducklake_discover()` enriched discovery | Planned |
 | `quackscale_serve()` one-call server bootstrap | Planned |
-| Community extension descriptor publish | Planned |
+| Community extension descriptor publish | Done (GitHub Pages on release) |
 
 ## Risks