Then I'm not sure if it will remain simple for you :) But you should have plenty of tools to get the job done. I can't comment much on the security features, ex

Then I'm not sure if it will remain simple for you :) But you should have plenty of tools to get the job done. I can't comment much on the security features, except maybe for the firewall. PF is much simpler to understand than iptables. Rule definitions read almost like English. If you understand TCP/IP it's pretty easy to come up with a simple config. No need for a frontend à la UFW. In my case I use it on a personal computer and as long as I've got X.org and network connectivity I'm happy. By default OpenBSD doesn't have much software installed. In term of user software, you get ksh, vi (not Vim), optionally X.org with FVWM and I guess that's pretty much it. Then you just add what you need. Oh you also get Tmux, which originates from the OpenBSD project.