Assisted-by: Claude Sonnet 4.6 via Claude Code

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index ec51fc9..09efa51 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -17,11 +17,11 @@ jobs:
     permissions:
       contents: read # checkout.
     steps:
-      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
         with:
           persist-credentials: false
 
-      - uses: ruby/setup-ruby@7bae1d5a759a9b3b01cbd6c025bd6dce31f5cf72 # v1.206.0
+      - uses: ruby/setup-ruby@e65c17d16e57e481586a6a5a0282698790062f92 # v1
         with:
           bundler-cache: true
 
diff --git a/.github/workflows/preview.yml b/.github/workflows/preview.yml
new file mode 100644
index 0000000..30fa4fd
--- /dev/null
+++ b/.github/workflows/preview.yml
@@ -0,0 +1,41 @@
+name: Preview
+
+on:
+  pull_request:
+    types: [opened, reopened, synchronize, closed]
+
+permissions: {}
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.number }}
+  cancel-in-progress: true
+
+env:
+  FLY_API_TOKEN: ${{ secrets.FLY_API_TOKEN }}
+  FLY_REGION: sjc
+  FLY_ORG: personal
+
+jobs:
+  preview:
+    name: Preview
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read # checkout
+    concurrency:
+      group: pr-${{ github.event.number }}
+    environment:
+      name: pr-${{ github.event.number }}
+      url: ${{ steps.deploy.outputs.url }}
+    steps:
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
+        with:
+          persist-credentials: false
+
+      - uses: superfly/flyctl-actions/setup-flyctl@63da3ecc5e2793b98a3f2519b3d75d4f4c11cec2 # master
+
+      - name: Deploy preview
+        id: deploy
+        uses: superfly/fly-pr-review-apps@f5d85309215d5700e7a42faf9aa5e9a718aaef7c # 1.5.0
+        with:
+          config: fly.preview.toml
+          memory: 256