[microtherion]

Very neat indeed! Similar tools have done a lot to make TeX more accessible, so it makes sense that this also benefits lilypond.

I've started work on a project of my own that will do online rendering of lilypond (rather different design objectives from yours, though). I've been worrying a bit about resource consumption of frequent renders, and your application is occupying a rather extreme point there. Do you have any data about this already?

[jnetterf]

Right now, there are 183 active users, and the CPU is staying around 5% on my Ryzen 7 1700. Keeping LilyPond running as a server helps.

Can you tell me more about your goals? I'm open to collaborating if practical.

[microtherion]

Thanks! That's pretty encouraging performance.

Further details on my project in private e-mail.