Here are some of the highlights of various projects I've put out to some degree or another.

Some of the more sophisticated:

• Protochrome, my experiment in verifiable photography, a counter to the proliferation of photoshopping and other alterations to photos
• ParzellenBerlin, or every lot Berlin, a twitter bot to get a street-level view of Berlin
• Hexgrid, an exploration of cellular automata on hexagonal grids
• Pong: Battle Royale!, a many-player variant of a classic
• Chordial, a chorded keyboard emulator for X11
• my lisp (in progress), currently going through several iterations of redesigning
• LinkSanitizer, an Android app to handle tracking links and other link inconveniences
• *Star, an implementation of a board game as a JavaScript-free webapp

Some of the more straightforward:

• MC Escher and the projective plane
• Graph By Hand, a tool to generate represations of graphs drawn visually
• textrivers, a tool to visualise text in a fun way
• monochord player, a tool to explore a relationship between numbers and sound in a rather ancient way

See also:

• Git in many forms, from my own, to my GitLab and GitHub profiles