This is an adaptation of the standard 5x6 Dactyl Manuform case, which includes the following modifications.
GX16 aviation connector replaces RJ9
Easy rear mounting point for mini tactile push button switch (no more drilling holes just to have an external reset switch)
Angled entry point for Pro Micro mount (easier to slide the microcontroller in)
Internal "wiring guide" nubbins removed from underside of case
MX switch holes now have smooth edges instead of nubs (which interfered with installation of Kailh switches)
Removed key travel obstacles from thumb cluster area
Heat set insert wells deepened (so plastic doesn't ooze up into the threads)
Weird sliver of open space between Pro Micro mount and case wall filled in
Fixed a lot of doubled vertices and generally weird geometry in the original STL file
New case bottom to match edge profile of new connector area
Case only Included. Keyboard Not Included.