modified: Saturday 26 June 2021
Minisleep, a tiny wiki written in shell. Released 2019, see page for latest release.
Fixed-width and CSS Annihilator, a (quantum-era) Firefox addon that provides key shortcuts for de-widthing pages and disabling CSS. Released 2018, kept up-to-date.
The Echidna Menace, a puzzle game with AI. Released 2017 (actually much, much older).