I was astonished to find that Merker is an attempt by someone at Siemens to find a German word for “flag” in an IT context, in the best tradition of the Académie française.
This reminded me of my first working meeting in German, back in 1987. I was following everything until they suddenly starting talking about “flex”, which didn’t fit into the context and I completely lost the thread. I was quite miserable about my pathetic vocabulary until it eventually struck me that they were talking about “flags”. When pronounced with an educated German accent, this sounds like “flex”...