In-Depth Python Program Performance Analysis Tool. This is a performance analysis tool specifically designed for Python programs, capable of easily pinpointing performance bottlenecks and memory usage of Python programs without modifying the code. It is a CPython frame stack sampler written in C language, characterized by its small size, fast running speed, and zero code intrusion, supporting various visualization methods such as WebUI, TUI, and VSCode (additional installation required).

Universal Multi-Platform Source Switching Tool. This project is capable of switching to domestic mirror sources for common Linux distributions, programming languages, and software with a simple one-command operation. Written in C, it features efficiency and a lightweight nature, offering functionalities such as speed testing, multi-platform support, and project-level source switching, suitable for optimizing download speeds or resolving source access issues.

Flexible System Information Collection Daemon. This is a powerful daemon for collecting system information that can regularly gather and tally information about the system. It supports a rich array of data collection plugins capable of monitoring hardware usage, system performance metrics, network traffic, and various types of data, including Apache, MySQL, batteries, sensors, etc. It also supports outputting collected data to databases and monitoring systems such as RRDtool and InfluxDB, suitable for scenarios like embedded systems, IoT, and server cluster monitoring.

Open-Source Photography Post-Processing Tool. This is a free and professional post-processing software for photographic works. It acts as a virtual light table and darkroom, helping photographers store digital negatives, magnify and search through photos. The software can display information such as the focal length and exposure of the photos and supports features like edit history, map mode, and photo printing.

Fully Open Source Accounting Software. This is an open-source financial software suitable for individuals and small businesses. It uses double-entry accounting, offers a simple operation interface, and supports features such as generating reports, reconciliation, multi-currency, and real-time stock price retrieval. It is available on Windows, Linux, and macOS platforms.

Free Open Source Video Transcoding Tool. This is a powerful, community-driven open source video transcoding tool that supports the conversion of various video file formats into common formats such as MP4 and MKV.

Compact Command Line Music Player. This is a lightweight command line music player designed for Unix-like systems that can play local music files. It is simple to use, resource-efficient, and starts up quickly, supporting multiple audio formats.

Lightweight Remote Real-Time CPU/GPU Profiler. This project is a tool for monitoring multi-thread activities on CPUs and GPUs. It provides a C file that can be easily integrated into projects and comes with a real-time monitoring web interface, allowing remote observation and analysis of program performance through a browser. Suitable for scenarios such as monitoring real-time operational performance of games and analyzing performance of mobile applications.

Carrier-grade Open Source Telephony Platform. This is an open source communication framework that supports various communication protocols such as SIP and WebRTC. Serving as a multipurpose soft switch, it can be used to create a variety of voice and messaging services, such as enterprise telephone systems, virtual call centers, and video conferencing services.

A Time-Honored Roguelike Game. This is a classic single-player Roguelike game where players take on the role of a dungeon explorer in search of the mystical Amulet of Yendor. The game interface is composed of ASCII characters and is characterized by its high degree of freedom, difficulty, randomly generated maps, and permanent death, making it a game that players refer to as one that can be played for a lifetime.