if [ -z ${NET_KEYCHIP_ID:-} ]; then 
    echo "Keychip id not set, skipping.";
    sed -i '/^\[\/Script\/Mercury.MercuryNetworkSettings\]/,/^OfflineMode=false/ s/^OfflineMode=false/OfflineMode=true/' $dir/game/WindowsNoEditor/Mercury/Config/DefaultHardware.ini 
else
    sed -i "/^\[keychip\]/,/^id=A69E-01A88888888/ s/^id=A69E-01A88888888/id=$NET_KEYCHIP_ID/" $dir/game/bin/segatools.ini
    if [ -z ${NET_HOSTNAME:-} ]; then 
        echo "Server hostname not set, skipping.";
        sed -i '/^\[\/Script\/Mercury.MercuryNetworkSettings\]/,/^OfflineMode=false/ s/^OfflineMode=false/OfflineMode=true/' $dir/game/WindowsNoEditor/Mercury/Config/DefaultHardware.ini 
    else
        sed -i "/^\[dns\]/,/^default=127.0.0.1/ s/^default=127.0.0.1/default=$NET_HOSTNAME/" $dir/game/bin/segatools.ini
    fi
fi