I'm the same, was planning to write more about underground shows I was going to between 2016-2019 but never was satisfied with the results. I have a bunch of unpublished gig reviews somewhere on a drive, haha.
Have fun at that dude :) Were I still there today, I'd probably join you. As things are now, my first one will be WITTR on October 13th. But the way things are in Hamburg right now it's unclear if that'll happen.