I find that even without abstractions, code can be fairly unreadable if it goes in strong on Uncle Bob's Clean Code ideas and you're bouncing up and down the code/stack frames trying to see where the work actually happens.

Or, borrowed from another "proverb": Pre-mature abstraction is the root of all evil

I created a Nushell plugin in Rust that merely converts between Nushell and BSON data formats.

It works, but I still have a fundamental lack of understanding of the magic abstract generalized data transformation framework/interface.

I wish there were fewer magic conversions and transformations, and less required knowledge of them and calling or knowing the correct ones. Magic traits leading to magic conversions for magic reasons. Or something.