Out of the box, there is no apparent view to scan with a Steam Deck. In reality, the relevant back end support (sane) is already present so the only thing one should need (assuming that the scanner is supported) is to install NAPS.

NAPS is available in the software center Discover and once installed and executed, it’s only a matter of creating a “Profile” by choosing the button of the same name:

And then you’ll be able to add a new profile that you will be able to configure and recall at a later stage. This is particularly useful if you want to have a profile for scanning text, and another one for scanning pictures. These will most likely have different settings.

In the new profile window, make sure you click on the button “Choose device” as this will look for a scanner plugged to your system.

Once you have a profile saved, you can then select it when you want to enjoy scanning on a Steam Deck! Please note that sometimes I have to “choose device” when I connect the scanner as the USB address that it automatically receives from the system is not always the same and NAPS might complain that is not able to find it.