Mon Feb 25 00:01:46 EST 2019

glue vs. algorithmic

Untyped, fast deploy, test-driven for glue code where the main
difficulty is API discovery through trial and error.

For anything that is better defined, or has more internal logic, is
more algorithmic or data-structure heavy, use static types.

It is really the former where there might be complex types, but they
do not vary a whole lot.  Once it works, there are few special cases.
If something fails, add a special case.