Looks pretty interesting, I see it supports social logins but doesn't look like generic oauth oidc / saml is supported yet - I think that'd be the killer feature, as rolling your own user/pass login isn't all that hard but generic SSO is where things get tricky.

If you added that, I've started working on a SCIM client implementation in typescript that could be a nice complement (or just jumpstart) in future (https://github.com/mnahkies/node-scim)