Here's some old software I wrote or maintained around 10 years ago for the Apple IIgs platform. None of this is supported or updated in any way.
CoolWriter 3.1 - a text editor with useful file-conversion features
DeskMaker 1.1 - a desk accessory to set the desktop background
MegaBox 3.0 - desk accessory and Finder extension; player for music in several formats used by IIgs trackers
AccentIt! - simple init to reset battery RAM keyboard bytes so dead keys always work
SoundIt! - desk accessory and Finder extension for sampled sound files
Welcome 5.0.1 - tools to change the startup screen