It looks like my first message got lost in the ether, so I'll try again with a shorter one, without pictures.
I put together a pretty simple little TU100b build about a month ago with a Ryzen 7 3700X, 32 GB RAM, a 512 GB NVMe drive, and an old Radeon HD 7750 video card. This was a project for my work, where we needed a field computer to run software that stitches together UAV (drone) footage into an orthomosaic map.
After I delivered that box, they asked if I could make another one, but even more powerful. So right now I'm working on one with a Ryzen 9 3900X. I was very much inspired by Simmons572's build. I should take delivery of my final part, a custom Enhance 400 watt Flex ATX power supply from Geeek Store, later this week. Pictures will follow.