What is the recommended way to translate hardcoded text in .yaml file?

Using x-corporation and the footer is hardcoded into x-corporation.yaml and wonder what is the best way to translate it? Can I add a translation file such as de.yaml (how would that work)?

OK, found a fix for this in the manuals. Anybody having same issue search for “Translation via Twig” in here https://learn.getgrav.org/content/multi-language#single-language-different-than-english