diff --git a/inventory.yml b/inventory.yml
index b83b9fb..219a60a 100644
--- a/inventory.yml
+++ b/inventory.yml
@@ -116,7 +116,7 @@ all:
       server_admin: "admin+platon@netz39.de"
       mac: "b8:27:eb:8f:98:2f"
       gatekeeper_user: pi
-      gatekeeper_sip_registration:  !vault |
+      gatekeeper_sip_registration: !vault |
         $ANSIBLE_VAULT;1.1;AES256
         31306464613437343762323366393132323231306362393762636361353230353632333834663430
         3133663661396566623664323134353737643039646263320a333434326561383962643739346265
diff --git a/krypton.yml b/krypton.yml
index d8080c9..8d6ea22 100644
--- a/krypton.yml
+++ b/krypton.yml
@@ -78,8 +78,8 @@
           KEEP_EXISTING_CONFIG: "false"
           LDAP_REMOVE_CONFIG_AFTER_SETUP: "true"
         published_ports:
-          - "389:389" # unencrypted/STARTTLS
-          - "636:636" # SSL
+          - "389:389"   # unencrypted/STARTTLS
+          - "636:636"   # SSL
         volumes:
           - "{{ openldap_data }}/ldap:/var/lib/ldap"
           - "{{ openldap_data }}/slapd:/etc/ldap/slapd.d"
diff --git a/platon.yml b/platon.yml
index 1c5ccf3..f911e93 100644
--- a/platon.yml
+++ b/platon.yml
@@ -138,7 +138,7 @@
         force: no
       register: wiringPi_download
 
-    - name: Install wiringPi library # noqa 503
+    - name: Install wiringPi library  # noqa 503
       ansible.builtin.apt:
         state: present
         deb: "/home/{{ gatekeeper_user }}/wiringpi-latest.deb"
diff --git a/pottwal.yml b/pottwal.yml
index 5f694f3..2298afb 100644
--- a/pottwal.yml
+++ b/pottwal.yml
@@ -326,7 +326,7 @@
         detach: yes
         env:
           MYSQL_ROOT_PASSWORD: "{{ redmine_database_password }}"
-          MYSQL_DATABASE:  "{{ redmine_database }}"
+          MYSQL_DATABASE: "{{ redmine_database }}"
         volumes:
           - "{{ data_dir }}/redmine/mysql:/var/lib/mysql"
         networks:
@@ -369,7 +369,7 @@
     - name: Ensure container for uptime-kuma is running
       docker_container:
         name: uptime-kuma
-        image: "louislam/uptime-kuma:1" 
+        image: "louislam/uptime-kuma:1"
         pull: true
         state: started
         detach: yes
diff --git a/radon.yml b/radon.yml
index 52ad0bc..e614615 100644
--- a/radon.yml
+++ b/radon.yml
@@ -31,10 +31,10 @@
       vars:
         dehydrated_contact_email: "{{ server_admin }}"
         dehydrated_domains:
-        - name: nodered.n39.eu
-        - name: rabbitmq.n39.eu
-        - name: pwr-meter-pulse-gw-19i.svc.n39.eu
-        - name: brotherql-web.n39.eu
+          - name: nodered.n39.eu
+          - name: rabbitmq.n39.eu
+          - name: pwr-meter-pulse-gw-19i.svc.n39.eu
+          - name: brotherql-web.n39.eu
     - role: penguineer.dehydrated_cron
 
 
diff --git a/requirements.yml b/requirements.yml
index 53073ff..cc463d4 100644
--- a/requirements.yml
+++ b/requirements.yml
@@ -1,5 +1,5 @@
 ---
-- src: hifis.unattended_upgrades 
+- src: hifis.unattended_upgrades
   version: v1.12.2
 - src: git+https://github.com/adriagalin/ansible.timezone.git
   version: 3.0.0
diff --git a/tau.yml b/tau.yml
index d5548e7..8a622e7 100644
--- a/tau.yml
+++ b/tau.yml
@@ -7,7 +7,7 @@
 
     data_dir: "/srv/docker"
 
-    docker_registry_port: 5000 # this is the reg standard port
+    docker_registry_port: 5000  # this is the reg standard port
     docker_registry_domain: "docker.n39.eu"
 
     dokuwiki_domain: "wiki.netz39.de"
@@ -98,14 +98,14 @@
         restart_policy: unless-stopped
         detach: yes
         ports:
-        - 127.0.0.1:{{ docker_registry_port }}:{{ docker_registry_port }}
+          - 127.0.0.1:{{ docker_registry_port }}:{{ docker_registry_port }}
         env:
           REGISTRY_HTTP_HOST: "https://{{ docker_registry_domain }}"
           REGISTRY_AUTH_HTPASSWD_REALM: "Netz39 Docker Registry"
           REGISTRY_AUTH_HTPASSWD_PATH: "/auth/htpasswd"
         volumes:
-        - "{{ data_dir }}/registry/data:/var/lib/registry:rw"
-        - "{{ data_dir }}/registry/auth:/auth:rw"
+          - "{{ data_dir }}/registry/data:/var/lib/registry:rw"
+          - "{{ data_dir }}/registry/auth:/auth:rw"
 
     - name: Setup proxy site for the Docker Registry
       include_role:
@@ -139,11 +139,11 @@
         restart_policy: unless-stopped
         detach: yes
         ports:
-        - 127.0.0.1:{{ dokuwiki_port }}:{{ 8080 }}
+          - 127.0.0.1:{{ dokuwiki_port }}:{{ 8080 }}
         # env: No env here, because we copy the data
         # and the container will never be created from scratch.
         volumes:
-        - "{{ data_dir }}/dokuwiki:/bitnami/dokuwiki:rw"
+          - "{{ data_dir }}/dokuwiki:/bitnami/dokuwiki:rw"
 
     - name: Setup proxy site for Dokuwiki
       include_role:
@@ -162,4 +162,4 @@
         restart_policy: unless-stopped
         detach: yes
         ports:
-        - "53:53/udp"
+          - "53:53/udp"
diff --git a/unicorn.yml b/unicorn.yml
index 9045c85..67f5795 100644
--- a/unicorn.yml
+++ b/unicorn.yml
@@ -22,12 +22,12 @@
         # These fixed ports are needed.
         # https://help.ui.com/hc/en-us/articles/218506997-UniFi-Ports-Used
         ports:
-          - "8080:8080/tcp" # Device command/control
-          - "8443:8443/tcp" # Web interface + API
-          - "8843:8843/tcp" # HTTPS portal
-          - "8880:8880/tcp" # HTTP portal
-          - "3478:3478/udp" # STUN service
-          - "6789:6789/tcp" # Speed Test (unifi5 only)
+          - "8080:8080/tcp"   # Device command/control
+          - "8443:8443/tcp"   # Web interface + API
+          - "8843:8843/tcp"   # HTTPS portal
+          - "8880:8880/tcp"   # HTTP portal
+          - "3478:3478/udp"   # STUN service
+          - "6789:6789/tcp"   # Speed Test (unifi5 only)
         volumes:
           - "{{ data_dir }}/unifi-controller/data:/unifi/data"
           - "{{ data_dir }}/unifi-controller/log:/unifi/log"