Very easy to find good deals (and parts) on these 1L business PCs!
ThorrJo
Testing an image post from Voyager client...
I only own the gear marked A and B, which lives above the couch I call home.
A is my web services 24/7 Proxmox box, an Intel 8500T; 2 routers; an 8TB HDD; and a Back-UPS Pro so old its ethernet surge protection is rated for 100bT, with a brand new LFP battery in it. The UPS powers both A and B.
B is my personal Proxmox box, an AMD 5750GE, which I use for development and running desktop OSes which I remote into, plus a GL.iNet Slate AX router. These come with me if I stay someplace other than the couch (not pictured). That's why they're on different shelves. Also, there's a USB wifi dongle w/antenna connected to B which I used when some stupid website demands I drop my VPN (all traffic from everything pictured is routed thru 24/7 private VPN endpoints, aka a $2/mo VPS or three).
Check out ServeTheHome's "Project TinyMiniMicro" on Youtube for a great overview of ultra-small form factor ("1 liter") business PCs.
The big three PC makers each have standardized products in this form factor with (relatively speaking, compared to smaller manufacturers) tons of spare parts available.
Go with used & refurb business PCs right out of the gate instead of fucking around with SBCs like the Pi.
Go with "1-liter" aka Ultra Small Form Factor right away instead of starting with SFF. (I don't have a permanent residence at the moment so this makes sense for me)
Not sure if Wireguard over
obfs4proxy
is doable easily on OpenWRT yet, but it may be an option