Local MCP server that builds a persistent knowledge graph of code, docs, and infrastructure for AI coding agents and developers.
A Windows-inspired PS5 homebrew OS bringing 32-bit and 64-bit Windows gaming to console hardware through a custom Wine/Proton compatibility stack and native Vulkan graphics.
General-purpose toolkit implementing TLS, DTLS, and QUIC protocols on top of a standalone cryptographic library and CLI.
Faster FSR 4.1.1 upscaling on Radeon RX 6000 and RX 7000 graphics cards, on Windows and Linux: drop-in DLLs and shader overrides. Exact version keeps AMD's picture byte for byte; optional lossy version is faster still.
High-performance Rust-powered Android VPN β Full-device tunneling via SHARD (Custom Protocol), MASQUE/HTTP-3, WireGuard, WARP-on-WARP, Psiphon, and Tor.
A new lightweight, hybrid routing mesh protocol for packet radios
The game-folder fixes of MacGameVideoFix as their own app: fourteen Windows games fixed on a Mac with nothing patched in CrossOver. Works with CrossOver, CrossOver Preview and Steam Play tools such as NotProton.
FreeRDP is a free remote desktop protocol library and clients
Modern, secure, portable, multiprotocol bootloader and boot manager.
A C library implementing X.509 certificate handling and the TLS and DTLS protocols, with a small footprint for embedded systems.
HAProxy Load Balancer's development branch (mirror of git.haproxy.org)
C library for prototyping and experimenting with quantum-resistant cryptography
Cross-platform multi-protocol VPN software. Pull requests are welcome. The stable version is available at https://github.com/SoftEtherVPN/SoftEtherVPN_Stable.
Protocol Buffers with small code size
The Network UPS Tools repository. UPS management protocol Informational RFC 9271 published by IETF at https://www.rfc-editor.org/info/rfc9271 Please star NUT on GitHub, this helps with sponsorships!
Cross-platform, C implementation of the IETF QUIC protocol, exposed to C, C++, C# and Rust.
Simple Open Source EtherCAT Master
Flipper Zero Protocol Pirate
GTK4 wireless security toolkit for Linux. 58 modules covering Wi-Fi, Bluetooth, RF and other wireless protocols as well as router-side and network MITM in one place. Built to tell you when something failed, not just when it worked. Some modules needs specific hardware.
Keepalived
LiteSpeed QUIC and HTTP/3 Library
ιι/Tongsuo is a Modern Cryptographic Primitives and Protocols Library
Firmware, device protocol, and reference BYOS server for the FlightPortrait e-ink frame
Play Windows games from your Steam library on Apple Silicon Macs. Open source: native arm64 Wine, FEX and Metal, no Rosetta.
The FRRouting Protocol Suite
The Apache Guacamole proxy daemon (guacd), C API (libguac), and protocol support.
An ultra-lightweight and blazing-fast Messaging Bus/MQTT Broker for Edge & SDV
FreeRADIUS - A multi-protocol policy server.
XQUIC Library released by Alibaba is a cross-platform implementation of QUIC and HTTP/3 protocol.
ngtcp2 project is an effort to implement IETF QUIC protocol
SAE J1939 protocol free to use for embedded systems or PC with CAN-bus
A Linux kernel module that implements the Homa transport protocol.
Open-source AMD Fluid Motion Frames (AFMF) for Linux: a Vulkan implicit layer that doubles the frame rate of any game, Proton or native, with FidelityFX Optical Flow. Tuned on RDNA4/RDNA3 with RADV; no game integration, no kernel module, no driver patch.
Winlator fork for running World of Warcraft and Battle.net on Android.
Adobe Creative Cloud 2026 on Linux through a patched Wine (61 patches): Photoshop, Illustrator, Premiere Pro, Audition, Media Encoder, Creative Cloud; After Effects now renders. Tested by comparing outputs with Windows. Testers wanted, AMD especially.
Transmits AM radio on computers without radio transmitting hardware.
An implementation of the TLS/SSL protocols
The client of the future
C/C++ server and network library, including coroutine,redis client,http/https/websocket,mqtt, mysql/postgresql/sqlite client with C/C++ for Linux, Android, iOS, MacOS, Windows, Harmony,etc..
Secure client/server protocol for multiplayer games built on top of UDP
For http protocol. nginx-upsync-module, sync upstreams from consul or etcd and so on, dynamiclly modify backend-servers attributes(weight, max_fails, down...), needn't reload nginx
An implementation of a small TCP/IP protocol stack for learning.
Official repository for libIEC61850, the open-source library for the IEC 61850 protocols
Nginx upstream module for the Redis 2.0 protocol
Minimal implementation of the QUIC protocol
FlatBuffers Compiler and Library in C for C
OMNeT++ Discrete Event Simulator
Cubesat Space Protocol - A small network-layer delivery protocol designed for Cubesats
Packet acknowledgement system for UDP
BACnet Protocol Stack library provides a BACnet application layer, network layer and media access (MAC) layer communications services.
Core implementation of Nvidia's GameStream protocol
Open-source and real-time orchestrator for cyber-physical-systems, to easily design, test and deploy embedded applications and digital twins.
An extension to operate with the IMAP protocol, as well as the NNTP, POP3, and local mailbox access methods.
Star Wars Episode I: The Phantom Menace (1999) PC modernized with online co-op multiplayer for up to 4 players. Play on Windows 10/11, Steam Deck and Proton with a modern installer, widescreen and ultrawide support, uncapped FPS, FOV fixes, improved controls, restored music and video, engine reimplementation and modding tools.
Applicative Protocol Multiplexer (e.g. share SSH and HTTPS on the same port)
Fork of VKD3D. Development branches for Proton's Direct3D 12 implementation.
Library for SRTP (Secure Realtime Transport Protocol)
Play Steam and PC games on Android with a Mali GPU. Works well on the Samsung Galaxy Tab S10+ and Galaxy Tab S11 Ultra; other Mali phones and tablets (MediaTek Dimensity, Google Tensor, Xiaomi XRing) are being tested. A Vulkan bridge for DroidDeck.