Yeah, that one on BACK7 is my favorite, so far. Only thing is that I saw that about the same time as they announced the new camera module, which requires ribbon cable access–apparently not included in the build (there are workarounds evident, however). I love those mil-spec GPIO ports–very clever–but it’s the ortholinear keyboard that really made it stand out for me. 
Found some more interesting builds:
It’s not a cyberdeck, but I’ve had an idea along those lines making use of a NUC9 interchangeably for studio and performance work, basically by leaving out the GPU and opting for an ADAT soundcard, instead. While I had conceived of it for use with a portable multitouch screen, I hadn’t considered VR as an alternative until just now (though I had separately been interested in using Virtual Desktop with a DAW), as the NUC9 can apparently handle VR.
Anyway, I’m now thinking it could be interesting to mod one of those new NUC chassis in the fashion of a cyberdeck, particularly since leaving out the GPU would leave plenty of room, I think both volumetrically and thermally, to build into the case. It would be a ridiculously expensive and overpowered rig as far as cyberdecks go, however, and I think that otherwise one would have to go the mini-ITX route anyhow to squeeze adequate power into that form-factor