Reminds me of this quote... “A complex system that works is invariably found to have evolved from a simple system that worked. A complex system designed from scratch never works and cannot be patched up to make it work.”

https://en.wikipedia.org/wiki/John_Gall_(author)#Gall's_law

The book is well worth reading.

https://news.ycombinator.com/item?id=9948767

Seconded.

Someone once described Systemantics as the book that systwm designers read under the covers at night with a torch.

or should do!