The mainboard does not seem to come with a Clip to arrest the M.2 Disk Drive in it's NVME slot - in case you need one: here's an option.
Lock the holder on the bottom side of the mainboard by adding a regular metal M4 thread nut on top of the printed shim, arrest the M.2 drive on the top side of the mainboard with a small self tapping screw - done. Be careful in case you print in PLA as the printed thread does not accept too much force.
The author marked this model as their own original creation.