> Hard agree. Is retrospect I think the model of Delphi, where you must assemble `manually` a `pkg` so you can export to the world should have been used instead.

Very very old Rust had "crate files" which were this https://github.com/rust-lang/rust/blob/a8eeec1dbd7e06bc811e5...

.rc standing for "rust crate"

There's pros and cons here. I'm of two minds.