1. My original goal was not having 5 different passwords for my own server because although I have a password manager it's still a bit annoying. Also just for learning.
2. You can see the services here[1], since my entire setup is provisioned from GitHub with Terraform and Ansible.
3. I have about 5 users.
4. I would say simplify so far, but it depends on what kind of complexity you care about, and which services you want to integrate.
[1] https://github.com/RedlineTriad/private_server/tree/master/s...