Yeah, UI with rust is shaping up (generally and especially for Android).

Oooh… Android. Congrats on the release. I really gotta try this out. I like QML.

Not that I know of. I think this needs to be implemented in a system framework.

Basically, yes. IIRC the FIDO/U2F handling is implemented in google libs.

They are however re-implemented in microG: https://github.com/microg/GmsCore/wiki/Implementation-Status, so if you are open to using that it should work with apps using the corresponding google client libraries.

I have used Firefox on Lineage/microG and tested FIDO2 there, it does NOT work with Fennec as that does not include the required client side libraries.

Very interesting. Cross compilation is always daunting.

I’ll just throw zig on the ever growing list of ‘things to take a look at’