This is a app bundle for git-annex. Most users are going to want to just click on the icon to start up the git-annex webapp. To use git-annex at the command line, you can put the directory containing this README into your PATH. Or, you can use the runshell script in this directory to start a shell that is configured to use git-annex and the other utilities included in this bundle, including git, gpg, rsync, ssh, etc.