Project-OSRM / osrm-backend

Open Source Routing Machine - C++ backend

OGRECave / ogre

high-performance rendering backend (C++, Python, C#, Java)

onnx / onnx-tensorrt

ONNX-TensorRT: TensorRT backend for ONNX

thorvg / thorvg

A production-ready C++ vector graphics engine supporting SVG and Lottie formats, featuring advanced rendering backends such as WebGPU for high-performance graphics.

tgfrerer / island

🌋🐎 Project Island is an experimental, hot-reloading Vulkan Renderer for Linux and Windows, written in C/C++.

kvmem / kvmem

KVMem virtualizes KV memory across inference backends to make ultra-long-context local AI accessible on limited hardware.

ajweeks / FlexEngine

Cross-platform game engine with Vulkan backend

tksuoran / erhe

erhe is a C++ library and editor for 3D graphics with a graphics API abstraction loosely modeled after Vulkan and Metal, with backends for OpenGL, Metal and Vulkan

saturneric / GpgFrontend

A modern, cross-platform OpenPGP tool with a unique dual-engine core: switch freely between the battle-tested GnuPG and a modern, memory-safe Rust rPGP backend. It makes encryption, signing, and key management easier and more trustworthy in everyday privacy workflows.

triton-inference-server / python_backend

Triton backend that enables pre-process, post-processing and other logic to be implemented in Python.

romange / helio

A modern framework for backend development based on io_uring Linux interface

cloudmus / cloudmus

A multi-source music player built on a front/backend

ishtms / OpenPocketBaseSDK

PocketBase SDK for Unreal Engine with Blueprint and C++ APIs for records, authentication, files, realtime, batch operations, and admin tooling.

romangalaxys10-spec / AnyPS5-OSX

AnyPS5 OSX Edition — PS5 executable porting toolkit with native Metal/MetalFX backend, Mach-O relinker output, and a hybrid PS5 + Nintendo Switch (Ryujinx) suite for macOS/Linux/Windows. GPL-2.0.

HoppouAI / Breeze-TTS-2.cpp

Bilingual English and Mandarin text to speech in C++ and GGUF. Voice design, cloning, direction and experimental voice conversion. Vulkan backend, streaming HTTP and WebSocket server, web UI and a C API.

HuxerUI / HuxerUI

A modern C++20 cross-platform declarative UI framework with shared state, layout, rendering, and native platform backends.