FamiStudio Flatpak request

Project information: FamiStudio is very simple music editor for the Nintendo Entertainment System or Famicom. It is designed to be easier to use than FamiTracker, but its feature set is also much more limited. It is targeted at both chiptune artists and NES homebrewers.

Name: FamiStudio
Homepage: https://famistudio.org
License: https://github.com/BleuBleu/FamiStudio/blob/master/LICENSE
Upstream has been contacted: https://github.com/BleuBleu/FamiStudio/issues/41