Honestly, I am siding with Linus here. Mainline is not the place for last minute changes without testing. And it seems Kent isn’t going to change his methods, etc. That and the retort was pretty disrespectful.
I have high hopes bcachefs can be something great but… At its current rate it’s going to flame out before reaching its potential.
I’d like to see some documentation that says passkeys were intended to never be synced across anything.
Everything I have ever read is that it’s basically asymmetric cryptography like ssh keys. You have a private one, generate the public and give it to the site. It stops reuse of passwords and site breaches become useless as the public key is useless for attacking an account on another site, etc. (well, besides whatever data was lost in the breach which is outside the scope.)
I see no reason to limit someone having the private key on their phone, their desktop, etc. Having to generate yet another passkey for every device is inefficient and would decrease adoption of this.