Fitting Endless OS images on small disks
People like to fixate on the disk space used by installing a calculator app as a Flatpak when you don’t have any other Flatpak apps installed. For example, on my system GNOME Calculator takes up 9.3 MB for itself, plus 803.1 MB for the GNOME 42 runtime it depends on. Regular readers will not be surprised when I say that that 803.1 MB figure looks rather different when you realise that Calculator is just one of 70 apps on my system that use that runtime; 11.5 MB of runtime per app feels a lot more reasonable.
But I do have one app installed which depends on the GNOME 3.34 runtime, which has been unsupported since August 2020, and the GNOME 3.34 runtime only shares 102 MB of its files with the GNOME 42 runtime, leaving 769 MB installed solely for this one 11 MB app.