Master programming by recreating your favorite technologies from scratch.

⭐️ Companies that don't have a broken hiring process

Telegram for Android source

Thunderbird for Android – Open Source Email App for Android (fka K-9 Mail)

⚠️ Fenix (Firefox for Android) moved to a new repository. It is now developed and maintained as part of: https://github.com/mozilla-mobile/firefox-android

A free, online & offline learning platform to make quality education accessible for all.

Modular and customizable Material Design UI components for Android

Material design file manager for Android

DuckDuckGo Android App

A collection of useful .gitignore templates

Primer is GitHub's design system. This is the CSS implementation

Mono's web site.

Let's Encrypt Website and Documentation

Example code for HTML, CSS, and Javascript for Web Developers Coursera Course