I generally believe that all business logic such as approvals and what-not should be implemented in the user-land portion of an engine. If it's hardcoded that x

I generally believe that all business logic such as approvals and what-not should be implemented in the user-land portion of an engine. If it's hardcoded that x-process should be followed, then you've now attached the price of a developer to changing that process. I'm getting to the point where when friends ask me for a project, I implement it in something like Node-Red (a "not-much-code" solution) then give that to them as a dockerfile. I know it's not perfect, but at least they "could" change it with just a mouse.