Hey! I actually wrote a thing to make the Swaybar a little more "complete" (e.g. battery status, currently selected program, clock, inspirational quote from ChatGPT, etc): https://git.sr.ht/~tombert/swaybar3

Not going to claim it will change the world or anything, but this runs perpetually with Sway and according to System Monitor it hovers at a little less than a megabyte of RAM. You can set how often you want things to update, and add as many sections as you'd like, and it's easy to create extra modules if you are so inclined (though not as easy as the Clojure version since I haven't found an implementation of multimethods for Rust that I like as much).