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The Concise TypeScript Book: A Concise Guide to Effective Development in TypeScript. Free and Open Source.

Kavita is a fast, feature rich, cross platform reading server. Built with the goal of being a full solution for all your reading needs. Setup your own server and share your reading collection with your friends and family.

The Secure CommsOS™ for mission-critical operations

Data Engineering Zoomcamp is a free 9-week course on building production-ready data pipelines. The next cohort starts in January 2026. Join the course here 👇🏼

A curated list of free courses with certifications. Also available at https://free-certifications.com/

:books: 免费的计算机编程类中文书籍，欢迎投稿

DigitalPlat FreeDomain: Free Domain For Everyone

Master programming by recreating your favorite technologies from scratch.

A collective list of free APIs