codex-plusplus

Codex++ was a tweak loader for OpenAI's Codex desktop app. It patched your local install so Codex would load community-written tweaks at startup: custom settings pages, UI changes, main-process code, even native macOS APIs through its own bridge. MIT licensed, free, macOS, Windows, and Linux.

Past tense on purpose. The maintainer archived the repository on August 15, 2026, and it is now read-only. Version 1.0.0 was real work, with a Homebrew formula, a doctor command for signature and permission failures, a safe mode that disables tweaks without deleting them, and detection for Owl, the native shell current macOS Codex builds use. None of it gets another commit.

Do not install this now. The whole design depends on somebody tracking OpenAI's app changes and shipping a patch when Codex breaks the loader, and nobody is doing that anymore. For an AI coding tool you can actually modify, use one that is open to begin with: anomalyco/opencode, cline/cline, and Aider-AI/aider all take extensions without touching a signed app bundle. Solo, small, or large, the answer is the same.

The catch was always that this was unofficial, patched a signed application, and voided its code signature. Archiving turns that from a tolerable risk into a dead end. If it is already installed and working, run codexplusplus uninstall to restore the original app while the tooling still runs.