I have had a few side projects over the years.
The most important of these is an ongoing effort to make colorblind-safe typesetting easier in LaTeX. This started a few years ago with the creation of the colorblind LaTeX package which provides colorblind-safe color palettes.
Recently, I started helping in the creation of the cvd LaTeX package, a package that tries to tackle CVD-simulation directly in LaTeX.

This list gives an overview over the more polished of my projects.