Quatre articles pour comprendre systemd par l'exemple (dans des containers - podman):
Minimization / Dependencies / Defining services / Installing units

Commande "file" à la sauce AI
https://google.github.io/magika/
https://github.com/google/magika/tree/main

voir tableau "Relationship Between Resolution, Aspect Ratio, Pixel Density, Pixel Pitch and Main LCD Screen Sizes"