Run ROS locally

If you have Ubuntu 18.04 (recommended) install Singularity sudo apt-get install singularity-container.
But if you have Ubuntu 20.04 installed the package is missing in repository and you have to install Singularity manually.
Follow the Quick Start Guide https://sylabs.io/guides/3.5/user-guide/quick_start.html
and use version 3.5.3 https://github.com/hpcng/singularity/releases/tag/v3.5.3

Download Singularity image provided for labs

run singularity image with Ubuntu 18.04 + ROS Melodic:
singularity shell --nv path/to/robolab_melodic.simg
(--nv is needed for graphical output with NVIDIA graphic card, e.g. RViz)

Then source common ARO catkin workspace:
source /opt/ros/aro/setup.bash
or, your own workspace (if you have any):
source ~/workspace/aro/devel/setup.bash