>> mechanisms for managing out of source dependencies is just flat out clunky I'm not sure I agree. You can reference arbitrary, versioned out of tree deps via

>> mechanisms for managing out of source dependencies is just flat out clunky I'm not sure I agree. You can reference arbitrary, versioned out of tree deps via WORKSPACE file. You can pull from git at tag or revision, you can pull from cloud storage, maven, pypi, etc. Just about any realistic scenario is supported, and those that aren't yet are easily scriptable using a restricted python-like extension language.