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🥑 ArangoDB is a native multi-model database with flexible data models for documents, graphs, and key-values. Build high performance applications using a convenient SQL-like query language or JavaScript extensions.
Flexible level editor
Highly customizable Wayland bar for Sway and Wlroots based compositors. :v: :tada:
Tars is a high-performance RPC framework based on name service and Tars protocol, also integrated administration platform, and implemented hosting-service via flexible schedule.
A fast and flexible implementation of Rigid Body Dynamics algorithms and their analytical derivatives
High-performance C++ library for multiphysics and multibody dynamics simulations
Multiphysics Object Oriented Simulation Environment: A robust, modern, extendable, finite element/finite volume framework that excels at creating complex multiphysics simulations.
A C++20 library for fast serialization, deserialization and validation using reflection. Supports JSON, Avro, Boost Serialization, BSON, Cap'n Proto, CBOR, Cereal, Command line interfaces, CSV, Environment variables, flexbuffers, msgpack, parquet, TOML, UBJSON, XML, YAML, yas / msgpack.org[C++20]
Model Predictive Contouring Controller (MPCC) for Autonomous Racing
QUIC, a multiplexed stream transport over UDP
TCP/IP packet demultiplexer. Download from:
Flexible Collision Library
log4cplus is a simple to use C++ logging API providing thread-safe, flexible, and arbitrarily granular control over log management and configuration. It is modelled after the Java log4j API.
A header-only C++ argument parser library. Supposed to be flexible and powerful, and attempts to be compatible with the functionality of the Python standard argparse library (though not necessarily the API).
An Open Flexible Quadrotor Simulator
Updater system for Qt applications
SSH/HTTP(S) multiplexer. Run a webserver and a sshd on the same port w/o changes.
Run large AI models on your own PC: Qwen3.8-Flash-Next on Strata's engine, and GLM 5.3 Flash, DeepSeek V4 Flash, LFM2.5, Qwen3.6, Ornith 1.5, Gemma 4, Tiel Coder and MiniCPM-V on a second engine written for PolyStrata. One-click install for Windows and Linux, OpenAI/Anthropic API on localhost.
Fast, flexible and simple GUI.
Header-only C++11 library to encode/decode base64, base64url, base32, base32hex and hex (a.k.a. base16) as specified in RFC 4648, plus Crockford's base32. MIT licensed with consistent, flexible API.
multimodal routing, geocoding, and map tiles
Fast and flexible C++ library for working with OpenStreetMap data.
TTK - Topological Data Analysis and Visualization - Source Code
C++ regular expressions made easy