I did this years ago using the very thin (3mm, round) Unifi Patch Cables in white. Very clean and reliable, and getting 1 Gbit/s without issue.

Another benefit is that I can cram 4 of them inside a single cable runner at the one spot I have to (no space for a switch). Where it's just one cable you run them bare and they look very clean.

The old ones I have are still CAT5e, the newer ones they sell are CAT6 at the same thinness. All unshielded (UTP).

10/10 would buy again.