Download the .step file.
Recreated from scratch in freecad with the Remarkable 2 in mind.
No pen holder, because Remarkable 2 has a magnetic attachment on the side.
Note, this will fit a reMarkable 1 as well, but very snugly. And there is no pen holder.
No text/logo, because I struggled getting the extrude/boolean-cut working correctly, due to the text font having self-intersecting paths.
The author marked this model as their own original creation. Imported from Thingiverse.