Good news, you can use HA with LDAP (ish) and it's sorta supported using the built in command line auth - https://www.home-assistant.io/docs/authentication/prov

Good news, you can use HA with LDAP (ish) and it's sorta supported using the built in command line auth - https://www.home-assistant.io/docs/authentication/providers/#command-line https://www.home-assistant.io/docs/authentication/providers/... and the ldap-auth-sh script - https://github.com/bob1de/ldap-auth-sh https://github.com/bob1de/ldap-auth-sh Not quite SSO, but at least the passwords and users a synced across, so that's nice.