> This product is limited to 1 per customer

Demand outstrips production. Especially with a chip shortage and lots of people stuck inside lookin for projects.

ive reflashed old routers with openWRT into a server cluster, they are a lot more portable, quiet and power efficient, of course this doesnt scale up well as the hardware has its limits. keep in mind you dont have to host the entire website on one server, so you can balance the load that way if you need to.

Check out some of the supported boards for armbian, nanopis are usually pretty cheap and decent enough.

> Maximálně 1 ks na zákazníka.

Which I assume means something like "This product is limited to 1 per customer"

Thanks, looks like a nice choice! Unfortunately they only have 2 (4GB model, rest is out of stock) in stock at the moment ("Available quantity: 2" it says), but will keep an eye for when they get re-stocked.