AMOS translators might be interested in a new "Translate Moodle Academy" course at https://moodle.academy/course/view.php?id=52
It seems that transators who aprove this course will also be able to submit closed caption translations for Moodle HQ videos in YouTube.
Thanks very much for promoting the course German. In fact translators have always been able to submit translations of YouTube videos but it's a question of organising the uploading of them. All the videos for the Basic teaching and Admin courses and Moodle 4.0 videos have their transcripts in the relevant sites on Academy.
Anyone who wants to translate the translator tool for academy, it's this one: https://moodle.org/plugins/filter_translations and this one https://moodle.org/plugins/atto_translations.