Hook up your Homebrew installed with curl to your Github fork

hook_up_homebrew.sh

# Install Homebrew
#
mkdir -p /usr/local
mkdir -p /usr/local/bin
sudo chown -R $USER /usr/local
cd $HOME && mkdir -p homebrew
curl -L https://github.com/mxcl/homebrew/tarball/master | tar xz --strip 1 -C homebrew
ln -nfs $HOME/homebrew/bin/brew /usr/local/bin/
brew update

# Hook up Homebrew installation in `~/homebrew` to your fork
#
rm -rf /tmp/myhomebrew
git clone git@github.com:$USER/homebrew.git /tmp/myhomebrew
git --git-dir=/tmp/myhomebrew/.git remote rename origin $USER
git --git-dir=/tmp/myhomebrew/.git remote add upstream git://github.com/mxcl/homebrew.git
cp -r /tmp/myhomebrew/.git $HOME/homebrew/.git
rm -rf /tmp/myhomebrew