This is a very informative article. I hadn't really considered the complexity of the code before, so this is very helpful.

Spiral development with dependency injection is avoidable. A zero-cost solution is enforcing workmanship standards, well documented simple/clean design-patterns, and doxygen discipline.

https://en.wikipedia.org/wiki/The_Power_of_10:_Rules_for_Dev...

Maintainable coding practices are a skill like any other. =3