To start, either download the script by hand and then run
sudo chmod +x nexus.sh && sudo ./nexus.sh
Or you can use curl to download the script and run it
curl https://raw.githubusercontent.com/VerleneDodds/Nexus/main/detect-distro.sh > nexus.sh && sudo chmod +x nexus.sh && sudo ./nexus.sh
Now to have the service fully up you will need to open another terminal and type the following command
sudo docker exec Nexus sh deploy-olympiad.sh
Now you have succesfully started a Nexus docker container, if you would like to see more information on it, check out Nato As Code on YouTube