https://news.ycombinator.com/showhn.html#:~:text=please%20ma...

I mention this specifically because (a) no documentation means it's hard for anyone to know if they are in your target audience (b) supporting only Google login means creating an account just for your service is prohibitively hard (c) a less trusting soul may even view a Google-only login as a secret email collection service, given the huge "alpha" banner