I got a wild idea that I want to do myself for funding a hobby of mine. I am developing a similar software compared to yunohost or cloudron. The way I want to fund my hobby is by afflilate marketing. I am developing a solution for hosting, so it might make sense for someone to use it via digital ocean. All I got to do is provide a link as a their affliate member (which I am as of now not apart of) and my user gets a discount, digital ocean gets a customer, and I get about $20 dollars I think. There are several other programs like this by various other companies. What I think you might do with this idea is offer an affiliate deal for your users for isps or organizations that want to provide super low bandwidth services. I read recently there are still millions of modem users in the USA because of the various remote locations can't afford to bring a network in and no political will to do it either. Good luck to you, I think you got a good idea. I am not able to get it to work on docker at this time but I'll be keeping an eye on it.