Homebrew formula for the Inky email templating engine.

brew tap foundation/inky
brew install inky

brew update
brew upgrade inky

When a new version is tagged in the main inky repo, the release workflow:

1. Cross-compiles binaries for macOS (Intel + ARM), Linux (x86 + ARM), and Windows
2. Creates a GitHub Release with tarballs and SHA256 checksums
3. Update Formula/inky.rb with the new version, URLs, and checksums