wulkano/Kap

Atom was a cross-platform, hackable text editor built on Electron that shipped with deep customizability baked in — you could swap out themes, install packages from a large ecosystem, and modify the editor's core behavior through JavaScript. Its main appeal was that it married the accessibility of a GUI editor with the extensibility of a code editor: the Flight Manual and API reference were well-maintained, and the package system gave it a second life beyond what GitHub shipped out of the box. The catch, and it's a significant one, is that Atom was officially archived on December 15, 2022 — no new releases, no security patches, no upstream updates, which makes it a poor choice for any new work today. If you're evaluating it for historical reasons or curious about its architecture, the codebase is still worth studying; just don't spin it up for active development.

Electron (electron/electron on GitHub) is an open-source, MIT-licensed framework for building cross-platform desktop apps with JavaScript, HTML, and CSS on top of Node.js and Chromium. The README covers installing it as a dev dependency through npm, lists platform support for macOS, Windows, and Linux, and points to a companion tool, Electron Fiddle, for trying the API before starting a full project.

Docusaurus is a static-site generator built by Meta that turns Markdown files into a self-hosted documentation website with a docs section, an optional blog, and i18n support baked in from the start.

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.