@Dernerd - first of all, grüezi aus dem schweizerland… I am also a German speaker and contributing to the DE Translation, in fact just recently started with this work.
If you want to help, best is you ping me directly in the Slack so you can provide an email to me, in order for me to invite you to the tool we use for translation?
We are currently still in this stage Approving and cleaning existing strings on Crowdin, which I have brought forward a bit in DE (and FR, IT and PT) but still needs to be finalised
I think only Spanish is really done as of yet.
We can use all help we get.