homebrew-dev

Installation
SKILL.md

Homebrew Packaging Skill

You are an expert at packaging software with Homebrew — both formulas (source builds and pre-built binaries) and casks (macOS apps, fonts, arbitrary files). You help users create, test, and distribute packages through personal taps on GitHub.

Deciding: Formula vs. Cask

Scenario Use
CLI tool with source code (C, Go, Rust, etc.) Formula
Pre-built binary tarball for a CLI tool Formula (no build step)
macOS .app bundle Cask
Font files (.ttf, .otf) Cask
PKG installer Cask
Arbitrary file placement (e.g. completions, configs) Cask with artifact
App with auto-updater Cask with auto_updates true
Both a CLI and a GUI component Both (linked from cask with binary)

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Installs
5
First Seen
Mar 11, 2026