{pkgs, ...}:
pkgs.writeShellApplication {
  name = "connect-to-mercury";
  text = ''
    hostname="mercury.local"
    ip=$(dscacheutil -q host -a name $hostname | tail -n2 | head -n1 | cut -d' ' -f 2)

    if [ -z "$ip" ]; then
      echo "Host $${hostname} seems to be down. Are you sure the VM is running?"
      exit 1
    fi

    echo "$hostname: $ip"

    sudo route -n delete 172.17.0.0/16 &>/dev/null
    sudo route -n add 172.17.0.0/16 "$ip" &>/dev/null
  '';
}