Run the script a couple of times to get through everything. Re-run later to update versions.
If you feel lucky:
bash <(curl -s https://gist.githubusercontent.com/steenkamby/e3ab7c35d2a08b1df1ef01c920999104/raw/1f3177546a3b31c857ae7d563dff0ec2d452ed93/install_mac.sh)