Nice to hear that there has been some progress here. I recall trying Rust 4+ years ago and my experience with the module system really left a lot to be desired from someone most experienced with Python's module system.
I was confused by rusts module system too, after having used es6 modules in js and python but then I realised the module systems couldn't be compared.
In dynamic langauges like python or js u can individually use modules but in rust everything has to link back to either main or lib if I'm not mistaken.
This was what enabled me to get rid of preconceived notions of how a module system should work.
