Flashing GrapheneOS is pretty easy. On Linux you may have few complications: you must install Chromium or Chrome in order for the USB flashing to work (feature not available with Firefox). You may have to also manually set some permissions for the device in order for it to be detected in Chromium/Chrome.
As a customer, the only self checkout worth having is the kind you mostly find in clothing stores, where you dump all your purchases in a tub and RFID does it's magic to detect all the items in a second. You pay, you pack, you go. Only once have I encountered it in a grocery store (REWE in Hamburg) and it works even with the fruits and vegetables! The printed label you get from the scale in the fruits and veggies section also has RFID ! Magic. All the rest is absolutely trash, it's annoying and doesn't saves time at all unless you have less than 5 items.
Are you open to buying second hand ? Maybe try to find a Prusa i3 MK3 in good conditions on the market. Mine has been super reliable for many years (excluding the MMU 💩). Not the fastest nor most feature rich printer by today's standards, but a damn reliable one.
Je réponds pas à ces messages.
Les invitations pour des meetings sans agenda, aussi je n'y réponds pas. Ou les messages genre "tu as deux minutes pour te connecter à une visio?"
Ok, ok, ok, you got me interested.