I agree and so does the rust project. The main problem is that it's alot of work and it's hard.

https://www.youtube.com/watch?v=zGS-HqcAvA4 Here's a long video from jon gjengset that shows how it works and some of the effort already done to de-couple from github.

Crates is widely used so it's a rebuilding the track while the train is driving kind of problem.

It's just not a priority for the project right now, but I would also definitely like to see the issue done. It might be good for the rust project to vote on things like this during surveys so they know where to focus work!