Installation

$ source ~/ros_ws/devel/setup.sh
$ cd ~/ros_ws/src
$ git clone https://github.com/Hypochondriac-Hippos/hippos.git
$ cd ~/ros_ws
$ catkin_make

Use

$ source ~/ros_ws/dev/setup.sh
$ roslaunch hippos controller.launch

controller.launch launches all competition controller nodes.

Add a script to nodes. If the script has more than one module, give it its own folder. If developed in its own repo, use git submodule.
Add a node to launch/controller.launch