The most comprehensive collection of accurate astronomical algorithms in (C++, Objective-C and) Swift.

Incompatible Timesharing System

Emulating Intel 8080 and Zilog Z80 CPU's on Arduino Nano

XDebug debugger and AmpLink linker for Atari ST

Emulate a KIM-1 machine with original ROMs

Another Jupiter Ace computer clone

Secure, cross-platform Git credential storage with authentication to GitHub, Azure Repos, and other popular Git hosting services.

GFPGAN aims at developing Practical Algorithms for Real-world Face Restoration.

My Homebrew 6502 breadboard computer with my own #FORTH implementation

A z80 emulator + CP/M-80 reimplementation that intends to allow original CP/M software to be used under OS X.

Forth for RISC-V SBCs

An STM32 dev board that is also a notebook cover.

Firmware for the IMSAI 8080esp & Cromemco Z-1 relicas

With the RC6502-project for making an Apple 1 replica done I wanted to do something different, so I started designing a simple version of the RCA 1802-based Cosmac ELF instead.

Retro ][ is a 6502 based computer based off of the Apple ][.

Project to provide keyboard replacements for various classic computers, as well as classic ASCII keyboard

A collection of emulators mostly of retrobrew style systems

Micro-Soft Altair BASIC 3.2 source

PiGFX is a bare metal kernel for the Raspberry Pi that implements a basic ANSI terminal emulator

An Implementation of Adafruit's NeoPixel Library for Particle devices: Core, Photon, P1, Electron, Argon, Boron, Xenon and RedBear Duo.

Codeless drop-in universal library allows to prevent issues of keyboard sliding up and cover UITextField/UITextView. Neither need to write any code nor any setup required and much more.

A small framework for making simple games.

The Swift Programming Language

Syntax for Objective-C Queries