Rustpad
Efficient and minimal collaborative code editor, self-hosted
...The server is written in Rust, while the front end uses TypeScript, React, WebAssembly, and the Monaco editor. Rustpad is designed to be self-hosted and can run without a database by keeping documents in memory. It also supports optional SQLite persistence for retaining document contents across restarts. The project is especially useful for lightweight pair programming, collaborative note-taking, interviews, teaching, and temporary shared editing sessions.