I just spent a couple of weeks putting conduits in my brick walls. I couldn't reuse conduits in place for power (regulations, EU) and they are too small anyway.

I just spent a couple of weeks putting conduits in my brick walls. I couldn't reuse conduits in place for power (regulations, EU) and they are too small anyway. I used Cat6A, not fiber. I don't think an ISP will ever bring fiber to my home. Cat6A is 10 Gb/s so it should be OK for a NAS for a long time. I only have 1 Gb/s network cards now.