Create native linux/Ubuntu installer

[reahari]

Feature/enhancement description:
Can a native .deb package be created for debain-based systems? It'll have the benefit of being integrated with the system menus and filetypes can be associated with the program.

[Calinou]

There's already a Flatpak: https://flathub.org/apps/io.github.RodZill4.Material-Maker

Distribution-specific packages are on the way out for installing applications, as they require a lot of maintenance and have limited bebefits in return (if any).

[ivxvm]

@Calinou
Flatpaks by default can't access external drives for example. A lot of people save their work on external drives. The best alternative without limitations of flatpaks and without the downsides of distribution-specific packages are AppImages. Would be really nice to have Material Maker AppImage.

[Calinou]

Flatpaks by default can't access external drives for example.

You should be able to adjust the permissions that each Flatpak is granted using Flatseal. Add /run/media and /media to the list of paths that the application can read and write.