Probably the simplest version of a "package manager" are git submodules. Pointing submodule to `master` is effectively the same thing as pointing a "real" packa

Probably the simplest version of a "package manager" are git submodules. Pointing submodule to `master` is effectively the same thing as pointing a "real" package manager to `latest`. This is trunk based development, however you implement it. One could easily argue that floating versions are considered harmful for releases outside of development team and should always be pinned, but on the other hand it is hard to argue against support for floating versions in development. As much as I dislike floating versions, I am not aware of any other way to force changes downstream.