github is where over 100 million developers shape the future of software, together. contribute to the open source community, manage your git repositories, review code like a pro, track bugs and features, power your ci/cd and devops workflows, and secure code before you commit it.

stack overflow is the largest, most trusted online community for developers to learn, share​ ​their programming ​knowledge, and build their careers.

share quick reference and cheat sheet for developers

a ridiculous collection of web development cheatsheets · one-page guide to

find thousands of incredible, original programming cheat sheets, all free to download.

adopt a more pythonic coding style in 60 minutes of practice each week. python morsels includes exercises and screencasts by a professional python trainer.

uno platform: the ultimate open-source .net framework for creating stunning native apps across mobile, web, desktop, and embedded systems from a single codebase. embrace the power of uwp, winui, and .net maui for seamless development on windows, ios, android, macos, and webassembly.

oh my zsh is a delightful, open source, community-driven framework for managing your zsh configuration.

organize, learn, and practice keyboard shortcuts. create your own shortcut collections by importing from a large public database of shortcuts and master them using interactive practice sessions, advanced statistics, and spaced repetition methods.