I'd say this is a solved problem. It's easy to get all build dependencies of a package and for every library that gets updated you build the world. It's a more

I'd say this is a solved problem. It's easy to get all build dependencies of a package and for every library that gets updated you build the world. It's a more computing power and bandwidth that is required, but the maintenance burden is mostly solved by now by modern package managers or tooling on top of not so modern ones.