Explanation on German by nostr:nprofile1qqsgetm6fq7mgc04kt6dnrvr6uksrudgvwzt4mvky7lf2drepmtgvzgpzamhxue69uhkummnw3ezumr0wpczuum0vd5kzmqpz4mhxue69uhk2er9dchxummnw3ezumrpdejqzxrhwden5te0wfjkccte9eekummjwsh8xmmrd9skczw4tpu https://www.youtube.com/watch?v=Mch5uWahQj4