wix/react-native-navigation

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.

Termux is an Android terminal emulator that gives you a working Linux shell environment on your phone, backed by a separate package repository that supplies familiar tools like bash, git, python, and node. The core app handles terminal emulation and UI while optional plugins add capabilities like API access, boot scripts, floating windows, and Tasker integration—you cannot mix APKs from different sources since each signs with different keys, which catches newcomers off guard. The project is actively seeking maintainers, which signals the kind of maintenance burden to expect. Android 12+ users hit real stability problems from OS-level phantom process killing, a documented gotcha that the README explicitly calls out. Installation source matters significantly: GitHub builds include a critical security fix from v0.118.0 but use an exposed test signing key (everyone can forge updates), F-Droid builds lag by days to weeks, and the Google Play version is experimental with missing functionality. The debugging story is solid—built-in log level controls and a "Report Issue" feature that bundles diagnostics automatically, which actually makes bug reports useful.

Joplin is an open-source, privacy-focused note-taking application built with TypeScript that prioritizes offline access and user data ownership. It stores notes in Markdown format and supports end-to-end encrypted synchronization with Nextcloud, Dropbox, OneDrive, or Joplin Cloud, meaning your data stays under your control without vendor lock-in. The application handles large note collections organized into notebooks with full-text search across all platforms (Windows, macOS, Linux, Android, iOS), and includes a Web Clipper for Firefox and Chrome to capture web content directly. What sets Joplin apart is its extensibility through plugins and themes, plus the ability to import directly from Evernote including formatted content and metadata — a genuine migration path for users leaving proprietary ecosystems. The offline-first architecture ensures notes remain accessible without internet connectivity, which matters for users in regions with unreliable connections or those who simply prefer not to depend on cloud availability.

A collaborative GitHub list linking to open-source apps across iOS, iPadOS, watchOS, tvOS, and visionOS, grouped into categories like Browser, Communication, and Clone, with each entry tagged by year and language.