The layout is based on @umanovskis win-kbd-usint-nodead which I
use on my windows machines for quite some time now.
I stumbled on this layout in a superuser.com Post
Now it is time to make my on version for macOS which is my main operating system at home.
For that I'm using ukelele which can be installed via brew install --cask ukelele.
The dead key ¨ for Umlaute like ä, ü, ö and their uppercase variants are tedious to type. Since I'm a native german
speaker I use them a lot.