I hear keycloak has quarkus builds as well these days which should be much slimmer than how it used to be built.

Consider reviewing odoo, I last looked at them when they were known as openERP, I know one guy that runs it and is happy. It might be a bit much if you just want a CRM…

Self host all your stuff and use tailscale if you just want to provide private services to yourself

His podcast ended and he’s worked to remove them where possible. While I don’t know if there are archives of it I can vouch for the quality of his books. They receive updates throughout the year and are step by step guides on how to lock down certain aspects of your life. Its worth purchasing.

Personally I prefer oidc as it plays a central role in my setup, but have you seen other integration issues not related to oidc?