L0 
L4: Noob This is an excellent choice. If you have a little money to spend, you can buy specialized router sized mini PCs you can use for this. I like Protectli Vaults. They have the Opensource Coreboot BIOS installed. They can even pre-install PFSense or OPNSense if you want. All sorts of options, including 4G LTE failover. These are good too because their power requirements are low so you can run it and your validator longer on battery in the event of a power failure.
