Vector : Vector is an open-source utility for collecting, transforming, and routing logs, metrics, and events.
Kestra : Kestra is an open-source, event-driven orchestration platform that makes both scheduled and event-driven workflows easy. By bringing Infrastructure as...
Backstage : Backstage is an open platform for building developer portals. Powered by a centralized software catalog, Backstage restores order to your microservice...
Docusaurus : Easy to Maintain Open Source Documentation Websites
cal.com : Open source meeting scheduling tool. Send a link, let others book a slot. Calendly alternative.
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.