youzan/bugCatcher

Bootstrap is an open-source front-end framework maintained at twbs/bootstrap. It ships compiled and minified CSS and JavaScript for building responsive, mobile-first sites, is licensed under MIT, and the release referenced throughout the README's install instructions is v5.3.8. The project was created by Mark Otto and Jacob Thornton, and its documentation is built with Astro and hosted at getbootstrap.com.

jQuery remains actively maintained — the 4.x branch sits on main with full support, while 3.x gets critical-only patches and older branches are officially dead unless you pay HeroDevs for commercial support. The build system is practical: `npm run build` produces four output variants across `dist/` and `dist-module/` directories (regular, slim, ESM, and factory mode), and you can strip out individual modules like `ajax`, `effects`, `css`, or `deferred` to trim the bundle. The slim variant alone removes AJAX, animations, and deprecated methods — useful if you're targeting modern browsers where `querySelectorAll` covers most selector needs anyway. Tests run through QUnit with a PHP local server requirement, which feels dated compared to modern no-server test runners. jQuery's cross-environment story (browser, Node, extensions) is genuine and the factory mode is a thoughtful nod to headless/windowless contexts, but the reality is that new projects reach for it less often — the web platform itself has closed most of the gaps jQuery used to fill.

Master programming by recreating your favorite technologies from scratch.

freeCodeCamp is a free, self-paced curriculum for learning to code, published as open source at freeCodeCamp/freeCodeCamp. It's a 501(c)(3) nonprofit funded by donor support, structured around six certifications in its Full-Stack Developer Curriculum, each gated by required projects instead of open-book quizzes. The repository also carries beta language certifications for developers, interview-prep resources, and the code that runs the live freecodecamp.org platform.