Hi, I would like to contribute a flatpak package for MyPaint if nobody has done it yet.
Flatpak is growing as the best way to distribute applications in modern GNU/Linux distributions. In my opinion is better than the AppImage packaging that has been added recently.
I see there is a flatpak-builder manifest here https://github.com/alexlarsson/nightly-build-apps but is outdated. it uses scons while latest MyPaint master uses setup.py .
Even better, there could be two separate packages: MyPaint stable and a MyPaint Nightly. Then users can safely test the new releases.
UPDATE: I'm proposing the MyPaint v1.2.1 stable flatpak for Flathub , the pull request is here. They do automatic builds. And I'm working in a pull request for MyPaint itself to build the nightly / master MyPaint .I will do as @odysseywestra said and update the site as well so it can be merged.