Rust is an interesting case to me.

There are certainly a lot of libraries on crates.io, but I’ve noticed more projects in that ecosystem are willing to push back and resist importing unproven crates for smaller tasks. Most imported crates seem to me to be for bigger functionality that would be otherwise tedious to maintain, not something like “is this variable an array”.

(Note that I’m not saying Rust and Cargo are completely immune to the issue here)