# become root
su -

# install git
apt-get install git-core
 
# create project repository directory
mkdir /pub/repo/proj

# create bare repository inside
pushd /pub/repo/proj && git --bare init && popd

# add git service to inetd superserver
echo 'git stream tcp nowait mjf /opt/bin git daemon --inetd --verbose --export-all /pub/repo' >> /etc/inetd.conf

# restart inetd superserver
/etc/init.d/openbsd-inetd restart

# become user
exit

# create project
mkdir proj && cd proj && git init

# add remote
git remote add master ssh://username@localhost/pub/repo/proj

# do something
touch a
touch b
touch c

# commit local changes
git commit a b c -m 'Create test files'

# push to remote master
git push origin master

# voila!
exit