Open-source OpenAI Codex alternative | Multi-agent desktop GUI for OpenCode | manage coding sessions, visualize diffs, and stream in real-time.

AI coding agent with one Python core and three front-ends — headless CLI, Textual TUI, and an Electron desktop. Works with any OpenAI-compatible API, with risk-tiered permissions, event-sourced replayable sessions, and a fail-closed OS-level sandbox.