This is awesome. I have always wanted to self-host a Matrix instance as well, but I imagine it's going to be very hard to convince them to move over, from Telegram. Is there a blog post that I can read about homeserver setup? I am keen on seeing how easy it was, and keen on seeing what level of technical and financial resources you had to invest to get going.
Previously, we were mostly using group texts or Snapchat/Instagram to communicate, so the biggest selling point was the fact that we can share full quality pictures and videos between iOS and Android people.