Just a heads up if you didn’t know Nebulosity by Craig Stark is now free as he has made it open source as he did with phd guiding,a bit more work in stacking as opposed to Dss but worth the leg work from what I can make out there is a tutorial on YouTube on the Astronomy shed channel.
http://www.stark-labs.com/index.html
https://youtu.be/OMhLYg-xPuc
Regards Dave