Keep Calm and Read the Friendly Manual :-)
InvisibleJim Description:
Xnec2c is a high-performance, multi-threaded electromagnetic simulator (NEC2-based) with a GTK3 GUI. It reads NEC2 input files, provides built-in NEC2 editing, and on-demand calculations for antenna radiation patterns, gains, impedance, and VSWR, with visualization of currents and fields.
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QSpeakers is an open-source loudspeaker enclosure designer for Linux and other platforms, written in C++/Qt. It computes optimal enclosure volumes from Thiele/Small parameters.
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Kil0bit System Monitor is a low-latency Windows telemetry overlay that shows CPU, RAM, network, and GPU usage in real time directly on the taskbar. Lightweight, Rust-based, Slint UI, no Electron, no runtime.
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Mixer for RME Fireface CC devices with OSC API; includes GTK and Web UI frontends and WASM support.
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openMotor is an open-source internal ballistics simulator for rocket motor experimenters. It estimates a motor’s chamber pressure and thrust from propellant properties, grain geometry, and nozzle specifications, using the Fast Marching Method to simulate grain regression. Features include metric/imperial units, DXF grain loading, propellant editors, and GUI-based design tooling.
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Basilisk is a Free Software program for solving partial differential equations on adaptive Cartesian meshes.
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Basilisk is a Python/C++-based astrodynamics simulation framework for fast spacecraft dynamics, Monte Carlo analysis, and hardware-in-the-loop testing, with a modular architecture and Unity-based visualization.
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libavif is a portable C library for encoding and decoding AVIF images (AV1 Image File Format); includes avifenc and avifdec; supports multiple AV1 codecs and optional LibYUV acceleration.
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Open-source DNS server offering both authoritative and recursive modes with privacy-focused features like DNS-over-TLS/HTTPS/QUIC and ad-blocking.
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EmuDevz is a free, open-source game about building emulators. It provides an NES-style emulator, a 6502 assembly tutorial, a built-in debugger, unit tests, an in-game dictionary, and cross-platform tooling. It ships with a retro soundtrack and cross-device save support.