Digital logic design tool and simulator

Self-hostable instant messaging server compatible with classic AIM and ICQ clients written in golang. (Independently developed, not affiliated with or endorsed by AOL)

Browse the web on your J2ME device over Bluetooth

Archived source for gnubox (Internet over BT/IR on Nokia S60)

PLATOTerm for the Commodore 64

The elvis vi-clone (written by Steve Kirkendall)

Tiny MS-DOS TSR: bash-style TAB completion, command history and command-line editing for COMMAND.COM

Dual-pane FTP client for MS-DOS with many features like recursive operations, text viewing/editing, connection manager, etc.

Motorola 680x0 emulator written in C

Find, verify, and analyze leaked credentials

PlutoSDR osmo-trx modded firmware

GUI for minipro CLI

Sun TurboGX+ SBUS framebuffer VESA PROM mod

nullPlayer is a free open source macOS media player with some unique features

Reverse engineering the classic GTA Vice City game

Collection of knowledge about information security

A list of the various projects to get vintage computers connected to the internet

MOVED to code.netzhansa.com/hanshuebner/siemens-9772. This GitHub mirror is archived.

Visicalc recreated in C

Simulate Swarzschild black holes based on the methods presented in Luminet (1979)

BRL-CAD is a powerful cross-platform open source combinatorial solid modeling system

Simple, Fast, Secure, Flat-File CMS

Modern compilers for PowerPC Mac OS X Tiger/Leopard - GCC 7, GCC 10, Perl 5.34

The unofficial Daikatana 1.3 patch including Linux- and FreeBSD-Ports

A Windows 32-bit PE executable emulator for running classic Windows games and applications on modern systems.

Force Remove Copilot, Recall and More in Windows 11

TBXI (classic Mac OS New World ROM) patchset to boot 7.5+

Easily run old versions of UNIX for PDP-11 on modern hardware