Sure! I think Cognito is a decent solution. However, client-app integration can be tricky, and the documentation is quite ambiguous in my opinion. The recommended implementation option is Amplify, but I had concerns because it doesn't support HTTP-only cookies.
I also experimented with NextAuth.js, but its documentation wasn't great, possibly because they're working on a new major version. I struggled particularly with supporting multi-tenancy with Microsoft AD.
I noticed that you offer SAML over OAuth. I'm curious to try that out.
Yeah, we made SAML over OAuth available mainly for ease of use in NextJS. Drop me a note (email in HN bio)if you end up trying us out. Would love to see whether we're on the right track.
Any chance you'd share what went wrong with the other libraries/services? Curious to hear what mistakes we should avoid.