This portable microreactor seems a bit unrealistic. The nuclear reaction – more than 3 million watts thermal – puts out a lot of radioactivity. A reactor can’t be placed in an inhabited area without shielding. I suppose they would put the reactor several meters underground where the ground would shield the radiation from living things.
It would have to be bigger than a shipping container. There needs to be a steam turbine and generator, two circulation systems, one the primary and a secondary for the turbine, along with all the cooling, control and backup systems. This seems to be alot more complicated and larger, and not portable.
https://www.inceptivemind.com/radiant-low-cost-portable-nuclear-microreactors/21692/
