I was thinking about getting a mic from minidsp but it seems like this is quite invovled (while not a computer wizard I am generally a prosumer wiling/capable of doing basic level tweeking/computer stuff)

I watched this video and I was like you need a lot more than just a calibrated mic:

https://www.youtube.com/watch?v=HYMQ6M-Z5rM

I expected it to be just slightly more sophisticated than the Sonos One / Denon AVR Audessey type of room detection stuff.

This is too much work.