Oauth2 strategy for Google

Forms made easy for Rails! It's tied to a simple DSL, with no opinion on markup.

Master programming by recreating your favorite technologies from scratch.

A collection of various awesome lists for hackers, pentesters and security researchers

OSINT from your favorite services in a friendly terminal user interface - integrations for Virustotal, Shodan, and Censys

A collaborative pixel art project to teach people how to contribute to open-source

Learn how to design large-scale systems. Prep for the system design interview. Includes Anki flashcards.

📚 Freely available programming books

📝 Algorithms and data structures implemented in JavaScript with explanations and links to further readings

A book series (2 published editions) on the JS language.

freeCodeCamp.org's open-source codebase and curriculum. Learn to code for free.

Master the command line, in one page

🎓 Path to a free self-taught education in Computer Science!

A complete computer science study plan to become a software engineer.

A collection of inspiring lists, manuals, cheatsheets, blogs, hacks, one-liners, cli/web tools and more.