Open-source repositories gaining traction right now.
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#csharp
Lightning-Fast, On-Device, Multilingual TTS — running natively via ONNX.

Advanced UX and interoperability extension for Wand (WeMod) app

An experimental PlayStation 5 emulator project.

Free, open-source Windows optimization tool for performance, privacy, and simplicity.

This open-source curriculum introduces the fundamentals of Model Context Protocol (MCP) through real-world, cross-language examples in .NET, Java, TypeScript, JavaScript, Rust and Python. Designed for developers, it focuses on practical techniques for building modular, scalable, and secure AI workflows from session setup to service orchestration.

ShareX is a free and open-source application that enables users to capture or record any area of their screen with a single keystroke. It also supports uploading images, text, and various file types to a wide range of destinations.

The Free Software Media System - Server Backend & API

Star antlr / antlr4 ANTLR (ANother Tool for Language Recognition) is a powerful parser generator for reading, processing, executing, or translating structured text or binary files.

A complete GPT language model (training and inference) in ~600 lines of pure C#, zero dependencies

Ultimate transpiler: converts Python to C++, C#, Rust, JavaScript, TypeScript, Go, Java, and Swift, Kotlin.
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