After a hiatus of almost 13 years, I’ve made a new release of Aptus, my Mandelbrot explorer. I got re-interested in it as a way to make Zoom backgrounds during the pandemic.

I started by moving it from Python 2 to Python 3.9. Then the wxPython GUI needed to move up a few versions, but it wasn’t working too well. So I built a new browser-based user interface. A compute server in FastAPI and a UI in vanilla JavaScript are the new GUI.

There are features from the old GUI that aren’t available yet (You Are Here is my favorite), but it’s very usable.