> Avoid places that only offer the "Login with Foo" if at all possible (looking at you Tailscale).

Tailscale is the only serious company that I can ever recall offering /only/ third party login. It's bit bizarre on the face of it. Anyone know the reason?

Perhaps they are not a serious company after all?

I think I read somewhere (but could be wrong) that it was because they didn’t want to own any “authentication” services. Their infrastructure was zero trust (as in they don’t hold any passwords or private keys), just a discovery server for different devices.

Curious isn't it, especially as it's such a bad fit for their product - authenticating with GitHub in order to ssh made the whole thing so much more painful than it needed to be. I subsequently tried switching to using a passkey when that became an option, but it's not possible to make the passkey user the owner of a tailnet created by a GitHub org user, so I'm stuck with two users in my Tailscale and can't delete the GitHub org user. It's the main thing that keeps me looking for a reliable alternative to Tailscale.

My other annoyance lately is companies that don't let you set a password. It's either passkey only (which I'm not sold on, yet), or "we'll email you a login link". Great, now I have to wait for the email to show up, click the link, hope it doesn't expire if I get distracted while waiting, and then also delete your emails, sometimes multiple times a day?

What a shit tier authentication mechanism.