This is a simple gtk4 app that opens a filechoosernative.

You need crystal & libyaml-dev

• make
• make flatpak
• make snap

Flatpak

• Run flatpak run dev.geopjr.xdgportaltest
• Open a file by clicking the button in the app
• Notice the path shown in the terminal (it should be /run/user/XXXX/doc/$FILENAME)

Snap

• Run snap install ./*.snap --dangerous to install it
• Run xdgportaltest
• Open a file by clicking the button in the app
• Notice that you can't see any files