Third party firmware for Asus routers (newer codebase)

Floppy drive emulator for Gotek hardware

Open Watcom V2.0 - Source code repository, Wiki, Latest Binary build, Archived builds including all installers for download.

Cog - A Free and Open Source Audio Player for macOS 10.14+

Emulation of ISA sound cards and CD-ROM on Raspberry Pi Pico (GUS, SB/Adlib, MPU-401, Tandy, CMS, Panasonic CD-ROM) with USB mouse/joystick support

A chiptune tracker

Open Cubic Player (unix fork). Music visualizer for various tracked music formats (amiga modules, S3M, IT), chiptunes and other formats related to demoscene

An open-source engine for the classic "Johnny Castaway" screensaver, written in C and libSDL2

Lightweight GUI editor/converter for Super Famicom/Super Nintendo BRR samples in SDL2 for Windows/MacOS/Linux