tldr-pages/extldr

EbookFoundation/free-programming-books is a community-maintained collection of freely available programming learning resources, initially a clone of a StackOverflow list. Now administered by the Free Ebook Foundation, this repository, which has accumulated 394309 stars, organizes content into categories like books (sorted by programming language and subject), cheat sheets, online courses, interactive tutorials, problem sets, podcasts, screencasts, and programming playgrounds. A significant feature is its extensive multilingual support, offering resources in dozens of languages. The project is licensed under CC-BY-4.0 and actively encourages community contributions to expand its offerings.

The Algorithms - Python is an open-source collection of algorithm implementations written in Python, maintained by the TheAlgorithms organization on GitHub. The README frames the whole project as a teaching resource: the code exists to illustrate concepts, can run slower than Python's built-in equivalents, and is indexed in DIRECTORY.md for browsing. It's MIT licensed and has 223,712 stars and 50,966 forks on GitHub.

Awesome Go, maintained at avelino/awesome-go, groups Go frameworks, libraries, and software into topic categories including Actor Model, Artificial Intelligence, Audio and Music, Authentication and Authorization, Blockchain, Bot Building, and Build Automation. Every linked entry gets a short description instead of a bare URL. The repository carries an MIT license, has 180,946 stars and 13,482 forks on GitHub, and takes new entries through pull requests reviewed against its own contribution guidelines.

Master programming by recreating your favorite technologies from scratch.