1. Professional Programming

https://github.com/charlax/professional-programming

2. 30 seconds of code

https://github.com/30-seconds/30-seconds-of-code

3. Project Based Learning

https://github.com/practical-tutorials/project-based-learning

4. The System Design Primer

https://github.com/donnemartin/system-design-primer

5. Coding Interview University

https://github.com/jwasham/coding-interview-university

6. Every Programmer Should Know

https://github.com/mtdvio/every-programmer-should-know

7. roadmap .sh

https://github.com/kamranahmedse/developer-roadmap

8. Build your own X

https://github.com/codecrafters-io/build-your-own-x

9. List of Free Learning Resources In Many Languages

https://github.com/EbookFoundation/free-programming-books

10. Awesome Guidelines

https://github.com/Kristories/awesome-guidelines

11. Domain-Driven Hexagon

https://github.com/Sairyss/domain-driven-hexagon

Source

https://twitter.com/oliverjumpertz/status/1567836363881431042