Is it possible to add a relative filesystem path to Qlfile?

[gwerbin]

Suppose I am working on a project that bundles its dependencies in Git submodules:

./
  .git/
  README
  COPYING
  src/ ...
  t/ ...
  deps/
    depA/         <- git submodule
      thing-a.asd
      ...
    depB/         <- git submodule
      thing-b.asd
      ...

Is it possible to state a dependency on ./deps/depA with Qlot?

Would I have to define my own distribution .txt file that refers to the contents of deps/? Can I use the file:// scheme for that?