I’ve just uploaded Cellular Automata 1D – it renders elementary cellular automata as described by https://mathworld.wolfram.com/ElementaryCellularAutomaton.html.
It can give blinky computer light patterns that must be calculating Something Very Important, or more flowing visuals, depending on slider parameters. If you’ve not seen this sort of thing before, it’s definitely worth a look at Wolfram’s website to see what it can do. Color mapping and other adjustable things are described in detail in the code.
Looks good on a linear LED strip, great on a strip rolled around a pipe or tube!