Designed and manufactured by discourd user @drhigsby, this is a 10u ortho board defined by its forced bottom row layout including two 1.75u keys. The name is a phoneticisation of "double 175."
KLE found here.
Single-layout PCB, stacked acrylic case, Pro-Micro compatible PCB. Formerly open-source here, but the link has since disappeared; either private or deleted.
Manufactured in early 2021, there were only about five ever made. These are exactly identical to the full GB.
Sold in mid-2021 on the now-defunct P3D Store.
Now closed source, no planned runs.