A native Mac command center for terminal coding agents

What it does Supacode is a macOS app that serves as a command center for coding agents. It provides a native terminal interface meant to house agent-driven development workflows, keeping them off your browser tabs and inside a dedicated desktop workspace. The README offers build instructions but stays quiet on specific agent protocols, supported models, or how the “worktree” in the repo description fits.

The interesting bit Under the hood, the app embeds libghostty—the terminal engine from the Ghostty project—inside a Swift app built with The Composable Architecture. The README notes that GhosttyKit is compiled from Zig source into an XCFramework, making this a rare Zig-meets-Swift stack. The maintainer also runs a tight ship, explicitly rejecting “vibe-coded” pull requests and reviewing every line personally.

Key highlights

• Native macOS Swift app built with The Composable Architecture for state management
• Terminal core powered by libghostty, with the README noting GhosttyKit is built from Zig source into an XCFramework
• Build orchestration uses Tuist and mise for dependency management
• Requires macOS 26.0+ according to the README
• Maintainer prefers detailed issues over unsolicited PRs and closes submissions that miss quality standards

Caveats

• The repository description calls this a “worktree” coding agents command center, yet the README never explains how git worktrees factor in
• macOS 26.0+ is listed as a requirement, which may be a typo or an exceptionally forward-looking constraint
• No feature list, usage details, or documentation beyond build and development commands

Verdict Worth exploring if you are experimenting with Mac-native agent tooling or embedding Ghostty in Swift. Give it a pass if you need a fully documented, ready-to-use IDE today.