the core data files and operations.
<http://source.git-annex.branchable.com/?p=source.git;a=blob;f=doc/internals/git-remote-annex.mdwn;hb=git-remote-annex>
+Also, that branch has a proof of concept implementation in a shell script.
+Though it doesn't yet use special remotes at all, it is able to do
+incremental pushes to git bundles with a manifest.
+
I still need to do some design work around using the git-annex branch to
detect concurrent push situations where changes to the manifest get lost,
and re-add those changes to it later.