New CS Student: Migrating to FreeBSD - Questions about Service Management and Identity Management

Hello everyone, I'm a first-semester CS student from Germany, currently switching from Fedora to FreeBSD on my desktop. I still run Fedora on my laptop. I work part-time at our university's data center, helping with the maintenance of an OpenStack private cloud because I am truly eager to learn how to operate systems.

I plan to repurpose my desktop as a server to host some services locally in my student dormitory. I'm excited about FreeBSD and hope that learning it will help me run and administer services with minimal effort long-term. It would be great to manage my own infrastructure while being confident that updates won't break my system or require relearning everything. I have several questions:

What are the recommended patterns for hosting multiple services on a single server like bsd.cafe does ? Should I create a new user for each service (e.g., Lemmy, Forgejo), or should I run them all under the same user with multiple jails?

Is there a good identity management solution for FreeBSD? In the Fedora/Red Hat communities, people tend to use FreeIPA, but I haven't found an equivalent for FreeBSD yet. I'd like to provide my friends with single accounts that would give them access to services like Forgejo and Lemmy.

Looking forward to your suggestions!