Shared libraries

Correction : the integrators that work for banks *love* a system where they are paid to reinvent the wheel for every deployment, and love the maze of custom component versions that prevent their customers from auditing deliverables and noticing when they have been sold a leaky obsolescent mess.

Of course the same lack of ABI convergence that make those languages perfect to resell a mess at inflated prices to banks, makes them totally inadequate for cooperative OS building, where inefficiencies are not an occasion to invoice more but a direct cost in volunteer efforts.