LucenaCoder is a free, local, token-efficiency obsessed coding harness built by Lucena.One. Download for Mac, Windows, or Linux, or use npx lucenacoder to launch a workspace in-browser from any folder. Client-side by default, no login. Best paired with an OpenRouter key or custom endpoint. Keys, chats, and code stay on your machine. Long-running tasks? Try Underboss autonomous.