I've looked all over and can't figure out you could use Cherokee instead of Apache or Nginx for gitlab. I'd rather not run multiple webservers (and imagine that they could conflict anyway). I'm giving this a shot on Ubuntu Server 12.10.
For the record, I've already installed gitlab with this guide up to the Nginx section (with all default settings other than passwords, email addresses, and hostname). I'd like to install gitlab at git.mydomain.com and I would prefer for the local server files to be located at /var/www/git.mydomain.com, as I keep all of my domains under /var/www/.