Libraries and Version Controllers

Composer is working as uploader in one way. It uploads package from git, can detect updates in remote branch. And can't update pull request.
Negative side of this - I must use git inside of git, update both git then php composer update is taken effect.
Or change path to libraries and modules to outside of project folder and use one folder to all of my projects as *dmyers* tips. May be I should use second "codeigniter packages method" for now and wait another workable application. Thanks