awstats_update_all is a script that runs the AWStats statistics update process for all configured sites in parallel. Process priority and the number of processes executed in parallel are fully configurable. New AWStats sites are recognized automatically. It is designed to be run by cron.
gitolite is an access control layer on top of git. It allows you to setup git hosting on a central server, and have multiple "virtual" users (i.e., not "Unix" users) access multiple git repositories, with fine grained access control (read control at the repo level granularity, write control at branch/tag/file/dir level). It has several other features, comprehensive documentation, does not require root permissions, and does not depend on anything except git, Perl 5.8 or later, and any POSIX shell.