@kaimac if you want it you could implement it ;]
https://github.com/openbenches/openbenches.org
although I don't know the willingness to store accounts, since all are done through Auth0 so no credentials stored on OpenBenches' servers (I imagine it's quite the "burden" to deal with personal account info)
relevant issues:
https://github.com/openbenches/openbenches.org/issues?q=sign+in
https://github.com/openbenches/openbenches.org/issues/12
https://github.com/openbenches/openbenches.org/issues/331