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@taschenorakel We have Flatpak, AppImage and Snap packages.
And I believe our software is already available in every Linux distribution repositories in other formats (which is distributions' packagers responsibility). 
In any case, we are never against new packages if one cares enough to contribute scripts for our CI pipelines, then stay around to maintain these across the years. (packages are not a "patch welcome" only kind of changes; requires bigger involvement and long-term effort).
Cool stuff happening in packaging world: we are also setting up procedures and automated scripts to crop splash images as macOS DMG background and Windows installer side image. This adds some coolness and consistency to our packages.
Here are some cool examples featuring the upcoming #GIMP 3.2 RC3 splash (which may or may not become the final 3.2 splash).
This is work mainly led by Bruno, our hero packager in the last few years!
Our third release candidate for upcoming #GIMP 3.2 will feature a new splash image, made by astronomer @markmccaughrean (as were the first 2 RCs' splashes),
This #JWST image shows "a protostellar outflow complex called HH288, which we nicknamed The Dragon Jet some thirty years ago when we first discovered it using ground-based telescopes".
Enjoy!
