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I'm actually working on a similar-sounding build (albeit one with gnarly discrete graphics needs), which you can see here.I'd say +1 to the virtualization option, with a relatively low TDP Xeon proc and an OS-agnostic KVM such as unRAID (or even vSphere). Then you could spin up as many instances of your desired linux kernel as you want in lieu of the SBCs, SSL'ing or remoting into each instance.In terms of the physical case design, you could build it into a 1U or 2U server barebones (or design it yourself) and rack it in something like this.Just my two cents...
I'm actually working on a similar-sounding build (albeit one with gnarly discrete graphics needs), which you can see here.
I'd say +1 to the virtualization option, with a relatively low TDP Xeon proc and an OS-agnostic KVM such as unRAID (or even vSphere). Then you could spin up as many instances of your desired linux kernel as you want in lieu of the SBCs, SSL'ing or remoting into each instance.
In terms of the physical case design, you could build it into a 1U or 2U server barebones (or design it yourself) and rack it in something like this.
Just my two cents...