Application for Mind Mapping, Knowledge Management, Project Management. Develop, organize and communicate your ideas and knowledge in the most effective way.

Focalboard is an open source, self-hosted alternative to Trello, Notion, and Asana.

Bring projects, wikis, and teams together with AI. AppFlowy is the AI collaborative workspace where you achieve more without losing control of your data. The leading open source Notion alternative.

Encrypted Photo Safe for Android

User-friendly Desktop Client App for AI Models/LLMs (GPT, Claude, Gemini, Ollama...)

🧡 Follow your favorites in one inbox

Joplin - the privacy-focused note taking app with sync capabilities for Windows, macOS, Linux, Android and iOS.

Optimized implementation for color-icon-matrix barcodes

计算机专业课（408）思维导图和笔记：计算机组成原理（第五版 王爱英），数据结构（王道），计算机网络（第七版 谢希仁），操作系统（第四版 汤小丹）

分享 GitHub 上有趣、入门级的开源项目。Share interesting, entry-level open source projects on GitHub.