The fun part:
<pre>
cd /home/pi/VW_FLASHVW_Flashpython3 flashsimos18.py --file /home/pi/flashfiles/tunes/thisismytune.bin.checksummed.flashable --block CAL
</pre>
This command will use the "flashable" file to flash it to the "CAL" block on the ECU. You can also use --block by number.