[mhitza]

Yes, multiple times. But if you'd like to build an MVP you can't go wrong with a SaaS auth service to get you started and transition to something else.

Even better nowadays, there are multiple SaaS/starter kits you can use (most are paid) that remove all these chores and you can get down to your domain flow.

[kristiandupont]

I know a number of companies rely on Auth0 et al because it looks safer to customers, and in case of a breach it's good to be able to say that you are relying on industry standards etc.

However, my own experience is that the API's are in fact more complex to deal with than just setting it up yourself. So at least for MVP's, I wouldn't recommend it.