You're looking at a very small ship used for demo with only 125 TEU capacity and 4 containers across its width.How and where are they going to land though?
The average container ship can fit 13-24 container across its width.
More than enough space for a modular arresting gear system across ~4-6 container in width
Arguably landing strip could be the easiest to make modular, just need a group of containers with flat top plus 2 arresting gear cable units.