You can set an alias to spin up a git server so you can share what you're working on over a local network:
git config --global alias.serve '!server(){ git daemon --verbose --export-all --base-path=. --reuseaddr $@; }; server'
Now you can do git serve --port=9999
and somebody else can git pull git://YOUR-IP:9999/
to get a copy of your code.