---

- name: "lokale link-local IPv6 Adresse aus dem PUBLIC-Key erzeugen"
  ansible.builtin.shell: |
    cat /etc/wireguard/client_public.key | md5sum | sed 's/^\(..\)\(..\)\(..\)\(..\)\(..\).*$/fe80::02\1:\2ff:fe\3:\4\5/'
  register: wg_node_linklocal
  changed_when: false

...