It is very difficult for a solo developer to make a full-time living from their own open source product. These are some possible options: - Open-core (e.g. Gi

It is very difficult for a solo developer to make a full-time living from their own open source product. These are some possible options: - Open-core (e.g. Gitlab): Some code is closed source but adds extra features not available in the open source core. - Support/consultancy - Sponsorship or Patreon (not realistic or sustainable as a long-term solution for the industry as a whole) - hosting and online accounts for software that runs in the cloud The problem is: what if you don't want to do any of the above? I bet there are many developers who are put off by all the above. What if all you want to do is just sell your product for a fee to users, but with the source available? Impossible with open source. (Doing that is a "source available" option but it's no longer an open source solution.) The uncomfortable truth is that, despite decades of open source software, no-one has figured out how to make money from an open source product if all you simply want to do is just sell your open source app. If you find a suitable option for your app please let us know and I wish you lots of success :-)