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I just use this for the German "Umlaute" it's the easiest way to get them while not putting special characters in hard to reach places (backslash anyone?). Easy to install and set up and as a bonus I can type greek letters for math stuff now!

[SushiHippie]

Same, just use this as an US layout + umlauts. Because sometimes you need them, but otherwise the US layout is just way better than QWERTZ (IMO, i'm programming 90% of the time and life in zsh and sway).