[echelon]

One million percent yes.

The code shouldn't build, go green, or be in any shareable state. This is horrifically bad practice.

A language should remove all of these thorns in a first-class manner.

Until you use a package manager like Cargo, you probably can't intuit the wide gulf here. A good analogy might be imagining the world before version control.

Dependency control matters immensely. Hermeticity and repeatability matter immensely. We should strive to build these into the very foundations.