1 - Tech Interview Handbook
https://github.com/yangshun/tech-interview-handbook
2 - The Algorithms
https://github.com/TheAlgorithms
3 - Free Programming Books
https://github.com/EbookFoundation/free-programming-books
4 - 1000+ Free APIs
https://github.com/public-apis/public-apis
5 - Coding Interview University
https://github.com/jwasham/coding-interview-university
6 - 30 Seconds of Code
https://github.com/Chalarangelo/30-seconds-of-code
7 - Freecodecamp
