oblador/react-native-keychain

Free Programming Books (Chinese) is justjavac's GitHub index of free programming books, translated manuals, and course notes in Chinese, organized under headings like AI, Go, C/C++, and version control. It's a link list, not a curriculum - entries range from full book translations to single blog posts, some flagged `:worried:` for dead links, and contribution happens only through pull requests.

Expo is a monorepo containing the SDK, Modules API, Expo Go app, CLI, Router, and docs for building universal native apps with React across Android, iOS, and the web. It pairs with EAS, a separate hosted platform, for building and shipping finished apps. The project is MIT-licensed and written primarily in TypeScript.

Flutter is Google's open-source SDK, hosted at flutter/flutter on GitHub, for building user interfaces across mobile, web, and desktop from a single Dart codebase. The repo is licensed BSD-3-Clause, and its README documents stateful hot reload, a Skia/Impeller rendering pipeline, and Material/Cupertino widget sets as the core pieces developers work with.

Awesome Flutter (Solido/awesome-flutter) is a curated list of Flutter resources on GitHub: articles, blog posts, video tutorials, and UI packages sorted into topic sections instead of one long feed of links. It follows the standard awesome-list format, markdown headings with a one-line description and author credit per entry, and it leans toward UI widgets and components more than general Dart theory.