Hide cable in pine wood ceiling?

Hello,

starting Monday, our shell construction will begin. We are getting a solid wood house, and the ceilings will be made in visible wood quality and are currently planned to remain untreated (possibly later oil/wax). Now I want to prepare some cables for, for example, presence detectors or similar, but I know that I definitely will not connect most of them at the beginning. This certainly applies to the rented residential unit and possibly also to my own used unit. With our construction method, I certainly cannot pull cables afterwards.

So far, I have planned to hide unused cables as follows. Drill a hole for the outlet in the ceiling, mill away a few millimeters around the edge with a router, and then make (have made) a matching wooden ceiling piece. This will then be flush with the rest of the ceiling and should not be too noticeable if secured with 2 or 3 small screws.

The cables (mostly signal cables / CAT7A duplex) will then lie in the cavity and can be connected if needed. Possibly also power cables. Does anyone have any concerns about preparing some cables this way?

I wouldn't have pre-drilled anything there. Cable doesn't cost money... So just run it into all sorts of corners and measure somewhat accurately. If you need to access it later, you won't be tied to one position.