[RandomGerm4n]

The AusweisApp is Open Source and available on Windows, Linux and even FreeBSD too. You just need some NFC Scanner that works via USB and then you can use it without a mobile device. https://www.ausweisapp.bund.de/open-source-software

[ryukafalz]

This is the way to do it if you're gonna have a digital ID. Thank you Germany for setting a better example than many!