He has some really good, in-depth youtube explainer videos on LLMs. That said this bit on Apple Intelligence does not seem to reflect what people are experiencing.

“You know, it occurs to me that the best way you hurt rich people is by turning them into poor people.”

A PC can be a server. A server can be a PC.

Famously Google use commodity PC hardware to build the v1 version of its search engine:

I can only speak for myself and my kids. I have an iPhone because my work gave me one for free. They only support iPhone for security reasons. Keeping Android devices up to date across a large fleet is challenging leaving security gaps. For my kids they wanted my old iPhones because it’s what all their friends have.

Looks like this happened:

OpenSSH server has had built-in support for WebAuthn keys since 8.2.

What type of key do you have. Yubikey 5 supports multiple protocols including some you can use with SSH:

• Multi-protocol: YubiKey 5 Series is the most versatile security key supporting multiple authentication protocols including FIDO2/WebAuthn (hardware bound passkey), FIDO U2F, Yubico OTP, OATH-TOTP, OATH-HOTP, Smart card (PIV) and OpenPGP.

SSH would need to implement webauthn to support FIDO.