Pretty much sounds exactly like I was thinking of doing for the DIY. miniATX/ATX for all the expansion potential + SATA ports + large case to handle it + a CPU with 6 to 8 cores at least. Case would probably be a rack form factor but it doesn’t really matter. Probably 32 GB of RAM + a Quadro GPU/Some cheap AMD GPU or something cheapish like that strictly for encoding + Proxmox + TrueNAS or perhaps just unraid. Probably no desktop environments unless something really needs it for some reason. Not sure if I’ll go with a motherboard with an ILO/IPMI with its own NIC + vlan or not.

I was going to mix SSD/NVME for performance (if I mix these two, it’d be two separate performance tiers) and HDDs for capacity. Probably two 1+ Gbps NICs bonded and maybe a LACP port channel down the line. VPN with killswitch of course.

I could def. go cheaper on the hardware if I just wanted to use docker/podman mostly but I want VMs too. I’ll probably manage updates and backups of what I really care about off network via ansible + rclone + restic repos. I might would use zram + lz4 for most of my VMs because why not.