@ArpadLinks @greenpeace I think the latter ideas won't be implementable legally, but whyt you mean with the former already exists with many #AllInOnePCs, #ThinClients and #EmbeddedComputer|s:

• Low power, space-efficient computers that barely sip energy whilst being fully useable as Desktops.

Besides #surplus'd Hardware and frightingly-expensive for their computational power #Embedded systems there's @frameworkcomputer which sell you their #mainboards, #CoolerMaster sells a matching low-profile #case which allegedly has #VESA-Mounts, so you can easily screw that on the rear of a monitor and have a cheap #AiO #Desktop that is also #repairable.

• I hope that comes close to what you're looking for.