Claurst

Claurst is an open-source, multi-provider terminal coding agent built from the ground up in Rust. It started as a clean-room reimplementation of Claude Code's behavior and has since evolved into the most optimized TUI pair programmer with a 4ms cold start time, multi-provider support, a rich UI, plugin system, a companion named Rustle, chat forking, memory consolidation, and much more. It's fast, it's memory-efficient, it's yours to run however you want, and there's no tracking or telemetry.