Add Homebrew formula

.github/workflows/ci.yml

@@ -61,3 +61,22 @@ jobs:
           token: ${{ secrets.ECOSYSTEM_READ_TOKEN }}
           skip: lean-axioms
       - run: git diff --check
+
+  formula:
+    runs-on: macos-latest
+    env:
+      HOMEBREW_NO_AUTO_UPDATE: 1
+    steps:
+      - uses: actions/checkout@v5
+        with:
+          persist-credentials: false
+      - name: Audit the formula as committed
+        run: |
+          brew tap-new --no-git ci/local
+          tap=$(brew --repository ci/local)
+          cp Formula/oatp.rb "$tap/Formula/oatp.rb"
+          brew audit --strict ci/local/oatp
+      - name: Install and test the prebuilt binary
+        run: |
+          brew install ci/local/oatp
+          brew test ci/local/oatp

Formula/oatp.rb

@@ -0,0 +1,32 @@
+class Oatp < Formula
+  desc "Orchestrate automated theorem provers from Lean 4 and the CLI"
+  homepage "https://github.com/jonaprieto/oatp"
+  license "Apache-2.0"
+
+  on_macos do
+    if Hardware::CPU.arm?
+      url "https://github.com/jonaprieto/oatp/releases/download/v0.7.11/oatp-0.7.11-macos-arm64.tar.gz"
+      sha256 "50c195457ade0e94a23d056d0c36c6ba2708e5c3a5ab983649a7ab501b413017"
+    else
+      url "https://github.com/jonaprieto/oatp/releases/download/v0.7.11/oatp-0.7.11-macos-x86_64.tar.gz"
+      sha256 "bceb134d9cd9b154fe9cc42f16455807f3a8e8ae8b5788b27a11158ab43453c8"
+    end
+  end
+
+  on_linux do
+    if Hardware::CPU.intel?
+      url "https://github.com/jonaprieto/oatp/releases/download/v0.7.11/oatp-0.7.11-linux-x86_64.tar.gz"
+      sha256 "eca67e908a30d43e917c66301212616adfa7fc2b3117564171e391e6a0271df7"
+    else
+      odie "oatp currently publishes Linux x86_64 binaries only"
+    end
+  end
+
+  def install
+    bin.install "oatp"
+  end
+
+  test do
+    assert_match "oatp version #{version}", shell_output("#{bin}/oatp --version")
+  end
+end

README.md

@@ -29,7 +29,16 @@ Changes are reviewed, tested, and remain the maintainer's responsibility.
 
 ## Install the binary
 
-Install the latest release binary with [`jpillora/installer`](https://github.com/jpillora/installer):
+With Homebrew (macOS arm64 and x86_64, Linux x86_64):
+
+```sh
+brew tap jonaprieto/oatp https://github.com/jonaprieto/oatp
+brew trust --formula jonaprieto/oatp/oatp
+brew install oatp
+oatp --version
+```
+
+Or, on any platform, install the latest release binary with [`jpillora/installer`](https://github.com/jpillora/installer):
 
 ```sh
 curl https://i.jpillora.com/jonaprieto/oatp! | bash