instead of only building large nuclear reactor power station for whole cities, I would think that smaller, modular reactors, mass produced and transportable, thats easily expanded, maintained and replaced would be an important part of the solution to also incorporate where viable. A reactor thats an isolated "single-use" closed-system. Where the manufacturer comes and replaces it after some years and rebuilds a new one from the recyclable parts of the old one. I even think there are types that can use decommissioned nuclear warheads as fuel.

and Finland Have a Solution to Nuclear Power’s Waste Problem