What about an approach where there’s a website to facilitate people donating to FOSS project, and all that website needs is a list of possible recipients of the FOSS project (e.g., app developers, libraries it uses). When I want to donate I go to this website and say “I want to donate to Lemmy”, and it shows me “Lemmy has these possible recipients: X, Y, …”. When I say “I want to donate $10” the website asks “should we distribute this evenly among all Lemmy recipients?” (which might be the default) or I have the option of unchecking some recipients or or assigning some recipients a higher percentage of my donation.
I installed it behind traefik (proxy) via d.rymcg.tech and it’s been working fine.