Have fun with my write-up. Let me know if you spot errors!
https://www.tagnull.de/2019/10/24/Safe-WriteUp/
x41
I’ve been waiting for this.
It’s simple if you know what are you doing.
Thanks for the write-up.
Indeed. 
I didn’t know what I was doing at first. But now I now what’s going on.
You are welcome!