Initial Setup

Install PVE
- Download
- Put it on a bootable thumbdrive & boot the machine from it
- follow the defaults on screen
Set up Passwordless SSH
- (Admit it... If yer a Nerd, yer gonna wanna remote into this thing on the command line.)
fix update repositories
Do a full update
See Mini Debian for useful config stuff
Switch to DHCP
- (Hard-codded addressing is fine for your first server on a network that you haven't learned to mess up yet... Not so much after that.)
Get rid of subscription notice
- (If ya really wanna spend the money, go for it. OTOH... You're reading this page instead of looking for support from Proxmox...)
Set up SSL
upload ISOs
- I tend to upload Debian, LMDE & pfSense ISOs as a good starting point
- (Windows is also an option. Of course, then yer gonna need to buy licences...)

Optional Stuff

All-in-One Server
install mosquitto-clients
- I have gotten into the habit of just putting mosquitto-clients on everything. It's handy for things like monitoring scripts...)