did you know you can connect to wifi via a QR code?
I made a website about 5 years ago to do this in an easy and secure way. nothing is sent to the server, no cookies, ads, or tracking. 100% FOSS. run it yourself if you prefer. it supports over 30 languages thanks to contributors.
I have a wificard on my fridge for guests to connect.
https://wificard.io
What I really want to do is WPA3-Enterprise + an e-ink display with rotating credentials.
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that would be slick and totally doable!
WPA3-Enteprise means you could route different users (guest/yourself) to different VLANs, and also if you have multiple guests, give them different credentials. You can also expire credentials after some time, etc.