diff --git a/.github/workflows/crew-release.yml b/.github/workflows/crew-release.yml
new file mode 100644
index 0000000..589c68b
--- /dev/null
+++ b/.github/workflows/crew-release.yml
@@ -0,0 +1,72 @@
+name: crew release
+
+# Publish prebuilt `crew` binaries when a crew-v* tag is pushed, e.g.:
+#   git tag crew-v0.1.0 && git push origin crew-v0.1.0
+on:
+  push:
+    tags:
+      - "crew-v*"
+  workflow_dispatch:
+    inputs:
+      tag:
+        description: "Tag to build (e.g. crew-v0.1.0)"
+        required: true
+
+permissions:
+  contents: write
+
+jobs:
+  build:
+    name: build ${{ matrix.target }}
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - os: macos-latest
+            target: aarch64-apple-darwin
+          - os: macos-latest
+            target: x86_64-apple-darwin
+          - os: ubuntu-latest
+            target: x86_64-unknown-linux-gnu
+    steps:
+      - uses: actions/checkout@v4
+      - uses: dtolnay/rust-toolchain@stable
+        with:
+          targets: ${{ matrix.target }}
+      - name: Build release binary
+        working-directory: tui
+        run: cargo build --release --locked --target ${{ matrix.target }}
+      - name: Package
+        run: |
+          set -euo pipefail
+          ref="${{ github.event.inputs.tag || github.ref_name }}"
+          name="crew-${ref}-${{ matrix.target }}"
+          bindir="tui/target/${{ matrix.target }}/release"
+          tar -czf "${name}.tar.gz" -C "${bindir}" crew
+          shasum -a 256 "${name}.tar.gz" > "${name}.tar.gz.sha256"
+      - uses: actions/upload-artifact@v4
+        with:
+          name: crew-${{ matrix.target }}
+          path: |
+            *.tar.gz
+            *.tar.gz.sha256
+
+  release:
+    name: publish release
+    needs: build
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/download-artifact@v4
+        with:
+          path: dist
+          merge-multiple: true
+      - name: Create / update the release
+        uses: softprops/action-gh-release@v2
+        with:
+          tag_name: ${{ github.event.inputs.tag || github.ref_name }}
+          name: ${{ github.event.inputs.tag || github.ref_name }}
+          generate_release_notes: true
+          files: |
+            dist/*.tar.gz
+            dist/*.tar.gz.sha256
diff --git a/tui/README.md b/tui/README.md
index a85f73e..da2340b 100644
--- a/tui/README.md
+++ b/tui/README.md
@@ -58,6 +58,10 @@ cargo build --release
 The binary lands at `tui/target/release/crew`. Regenerate the website after UI
 changes with `python3 site/gen.py` (captures live `--snapshot` frames).
 
+**Prebuilt binaries.** Pushing a `crew-v*` tag builds and attaches
+`crew-<tag>-<target>.tar.gz` (macOS arm64/x86_64, Linux x86_64) to a GitHub
+Release via `.github/workflows/crew-release.yml`.
+
 ## Run
 
 From anywhere inside a repo (it resolves the git toplevel and scopes to it):