I've modeld a custom low profile cover for my ceiling lamp wiring. It's ment to be glued (I took double sided tape) on the ceiling. You have to remove the first isolation layer of your cable and fit them into the low profile cable channel.
This looks like a nice installation and idea but depending on where folks are that might do the same thing, this could be a code violation and possible safety hazard. This is in effect a junction box since there is a wire connection inside. There’s requirements those have to meet in various jurisdictions including flammability and rating/certification requirements and could affect insurance coverage. Apologies because it does look nice but folks may want to check local regulations before installing.