Good question. HA Green looks pretty cool. With that processor, though, running something like Frigate might not work very well.

For me, I run HA on a normal computer that I turned into a "server". Home Assistant was a gateway drug and now I run all sorts of other stuff in addition to it. I use Proxmox (as described in the article) so HA is a virtual machine, and there's a Debian virtual machine with a bunch of Docker stuff going. Having Docker run in a VM makes backups much easier.

For HA alone, the Green looks pretty cool. Most people probably won't outgrown it, but I certainly have.