Another spherical cow solution.

I wonder how software engineers will fare in a “self reliant” economy. Do unvested stocks work in a barter?

Without trade interdependenncies wars seem much more attractive to powerhungry leaders of countries, engineers can probably earn a living building killer ai robots.

Careful to what you wish for.

Autarky can be often found in 19th century literature. The one we hopefully don't want to have or produce anymore.