Here are the various software projects I’ve worked on over the years, at least the ones for which I’ve created web pages. These are usually not research prototypes, but software or libraries that are available publicly, whether as source code or executables.

Generative Zellij - Procedurally generated Zellij compositions. Click on the drawing and press the space bar to generate a new composition. Press the ‘s’ key to download an SVG file. Yes, I am somewhat ashamed to admit that a couple of years ago, I experimented with NFTs. Look: I was younger then, and …
Tactile - After many years, I developed an open-source library called Tactile, based on the research I did during my PhD. I also created a Javascript version of the library. This page offers a demo of the Javascript library, in the form of an interactive tool for editing the shapes of tiles.
Good Fences - Good Fences is a geometric puzzle game for iOS and Android in which you must surround a Kernel with a Fence made up of copies of the kernel. It should appeal to people who enjoy standard logic puzzles like Sudoku or Kakuro, but offers more hands-on geometric appeal, as in jigsaw puzzles or board games like Blokus.
Multiplication Drill - MultDrill is a web app that children can use to practice their times tables. It was also a first experiment in developing a web app using Haxe and OpenFL.
Spin Draw - Spin Draw is an iPad app that simulates a generalized version of a HOOT-NANNY, a die-cast metal drawing toy from the early twentieth century. The HOOT-NANNY belongs to a large class of mechanical drawing toys, of which the most famous is probably the Spirograph. Spin Draw can produce a broad class of fun swirly line drawings.