A collection of activation/evaluation extension methods for Windows 7 through 11.

Reverse-engineered ports of Build games using EDuke32 engine technology and development principles (NBlood/Rednukem/PCExhumed)

GCC 9 (Retro68) fork - compiler targeting PowerPC Windows NT (with PASM.EXE assembler and VC4.x linker)

S-100 ATX Motherboard for PC Cases

TeensyROM is a ROM Emulator, Fast Loader, MIDI and Internet cartridge for Commodore64/128

Chocolate Doom backported to DOS

Some scripts for converting the UTZOO Usenet archive to a Mongo Database

A safe archive of George Gwilt's various programs, with source where available,

sinclair ql demosystem

A simple, intuitive toolkit for quickly implementing LLM powered applications.

WinUAE Amiga emulator

Transputer T805 emulator, assembler, and Pascal compiler.

Genesis & Megadrive Emulator in C. Optimized for lightweight platform ( ex: STM32H7 ARM Cortex single core)

SD Card to Parallel Port Adapter and MS-DOS Driver

bootable external FAT hard disk image creator for DOS and Windows 3.1--95--98--ME

Port of putty 0.76 to Windows 3.1+Win32s.

Convert video from a Mac Plus/SE/Classic to a VESA VGA signal using a Raspberry Pi Pico

Sound Blaster emulation for DOS, with proper MPU-401 and soundfont support

Fallout 2 for modern operating systems

An ultra-lightweight native Discord client for vintage and modern Mac OS

A disassembly of Manic Miner, created using SkoolKit.

NES toolchain & emulator in C

Modern Generic SVGA driver for Windows 3.1

Inference Llama models in one file of pure C for Windows 98 running on 25-year-old hardware

Internal microdrive replacement for the Sinclair QL

Historical sources for the TRIvial Operating System

Awesome website for reverse engineering retro games:

qubide-tools

Schematic and PCB of the Sinclair QL Computer