I'm working on a side project of looking into a mini edge hypervisor that can run some small lightweight edge VMs and containers, like PFSense and the like. The hardware I have in mind is something along the lines of an Intel NUC or a Protectli Vault. I'd like to run the system with 4GB of RAM max. Do you think it would be practical to try and use Proxmox in this way? How much RAM will a brand new install of Proxmox use without anything running?