This is awesome! I just wrote a blog post along the same lines (https://staktrace.com/spout/entry.php?id=883) and I would like to join forces with you. Let me know if there's anything concrete I can do at the moment, otherwise I'll just keep an eye on your work and help where I can.
That's great to hear! Yes, we've wondered across the same sort of idea with your "DONATIONS.txt" file. I post updates when I can to the Matrix chatroom:
