So, most of the "core" Ardunino functionality was converted from being explicitly included in a sketch to being put in a library and only included "as needed" back in v11, right? (Resulting in a relatively significant space savings.)
What's the ordering of library searching, though? If I explicitly add a third party library (from hardware/libraries) or include a file in my sketch directory containing functions that overlap/replace the core functionality (in an attempt to override them with an "enhanced" version), will that work? Should it? (the flip side is that that would mean that accidentally picking the same name as a function in the core library could be disastrous!)