Hello, I want to use git-annex on a directory that also other persons, without git-annex use, i.e. modify, add and remove files to. What need I consider when doing that? * Use indirect mode * The the .git directory somewhere else? * Be prepared that a ```git annex get``` can always bring up checksum problems because someone modified the file I assume git-annex checksums before pushing to the repo, so that I don't otherwrite someone elses changes. What else? Thanks!