Looks like a good article to follow. Anyone has recommendations on a small form factor board to get for this project? It appears that the ASRock Mini ITX board in the article is no longer available?
I saw this today: https://www.reddit.com/r/PFSENSE/comments/jrlpmy/what_hw_for...
Also I was eyeing this from a few months back: https://arstechnica.com/gadgets/2020/08/review-odyssey-x86j4...
Also this is a good eBay seller which I recommend with some thinclients : https://www.ebay.com/str/theartofserver
Have a look at Odyssey by Seeed Studio, I got one for NAS. J4105, 2x Intel NICs, 8GB RAM and DC jack. Pretty good value after erasing Win10.
https://www.seeedstudio.com/Odyssey-Blue-J4105-128GB-p-4668....
I'm not sure how they would handle a gigabit. I have 250Mbps and I get 248Mbps with a dozen firewall rules.