[wild_preference]

One problem with simulation is that it's super resource intensive, particularly more than a video. It turns my laptop's fans on quickly which then fights for my attention with the relaxing audio and makes me acutely aware that I'm killing my battery and putting unnecessary load on my computer.

Maybe a better middleground is to use an animation with transparency that you can instead overlay any background, like a looping gif.

[lbebber]

This has not been done in the most optimal way—it could do with a lot less JS being used. A version with (mostly) WebGL could be much less resource hungry.

Try this version for comparison: https://codepen.io/stefanweck/pen/Vbgeax