cal.com : Open source meeting scheduling tool. Send a link, let others book a slot. Calendly alternative.
Isso : Isso – Ich schrei sonst – is a lightweight commenting server written in Python and JavaScript. It aims to be a drop-in replacement for Disqus.
Graft : Turbocharge Claude Code, Cursor, Codex, Gemini & every coding agent: faster, cheaper, with contextual understanding specific to your codebase.
restic : Restic is a modern backup program that can back up your files from Linux, BSD, Mac and Windows to many different storage types, including self-hosted ...
Sanity : Sanity is a headless, real-time CMS where the front end is an open source React-based construction kit and the back end is a graph-oriented cloud data...
CryptoZombies is a free, open source, interactive code school that teaches you to build games on Ethereum. The course is designed for beginners to Solidity and starts off with the absolute basics.