Ignore me, I'm sure extra ways to login will make their way later. I realise nsec.app is a great start.
Yep, other methods will be supported, but #1 priority is that it all be normie-friendly
It's safe to put a private key in nsec.app?
Yes, with the usual caveats about it being software connected to the internet, etc. But from my understanding it's FOSS and the key is stored in your browser.