Sounds like BoxyHQ could be relevant here. Plug-n-play for developers that need to build enterprise features like SSO, audit logs, directory sync, privacy vault

Sounds like BoxyHQ could be relevant here. Plug-n-play for developers that need to build enterprise features like SSO, audit logs, directory sync, privacy vault and other boring stuff that are required to be compliant. 100% free & self-hosted. It's Open source (Apache-2.0 license) [I am one of the co-founders, sorry for the plug]