I have remixed the original bike vertical mount part from @ensoniq2k and made it so that instead of drilling it, it can be attached to the front part of an IKEA IVAR shelf unit.
It is attached using some M3 bolt and there is space for a nut on the opposite side, but I ended up not using any.
4 bolts for each support x 2 supports for bike = 8 x M3 bolts and optional nut needed
Warnings:
Overall this was designed for me for a niche use, but perhaps there is a need for this.
The author remixed this model.
I have created a compatible mount that shares the same attaching method