diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 52a00c5a..42593e8f 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -189,8 +189,8 @@ variables:
   cache: {}
   dependencies: []
   extends: ".environments"
-  image: "registry.opencode.de/bmi/opendesk/components/platform-development/images/helm:1.0.1\
-          @sha256:d38f41b88374e055332860018f2936db8807b763caf6089735db0484cbb2842a"
+  image: "registry.opencode.de/bmi/opendesk/components/platform-development/images/helm:1.1.0\
+          @sha256:74f349066ac5d20e3afaa6abd28781b4c8dc086f67e3d3c1b8345e4a9c3371b1"
   script:
     - "cd ${CI_PROJECT_DIR}/helmfile/apps/${COMPONENT}"
     # MASTER_PASSWORD_WEB_VAR as precedence for MASTER_PASSWORD
diff --git a/docs/requirements.md b/docs/requirements.md
index 2d95d376..fa3d1f90 100644
--- a/docs/requirements.md
+++ b/docs/requirements.md
@@ -24,7 +24,7 @@ openDesk is a Kubernetes only solution and requires an existing Kubernetes (K8s)
 - Domain and DNS Service
 - Ingress controller (Ingress NGINX)
 - [Helm](https://helm.sh/) >= v3.9.0
-- [Helmfile](https://helmfile.readthedocs.io/en/latest/) >= **v0.157.0**
+- [Helmfile](https://helmfile.readthedocs.io/en/latest/) >= **v1.0.0-rc.5**
 - [HelmDiff](https://github.com/databus23/helm-diff) >= 3.6.0
 - Volume provisioner supporting RWO (read-write-once)
 - Certificate handling with [cert-manager](https://cert-manager.io/)
diff --git a/helmfile/apps/collabora/helmfile-child.yaml.gotmpl b/helmfile/apps/collabora/helmfile-child.yaml.gotmpl
index d2ee4cdf..80783a43 100644
--- a/helmfile/apps/collabora/helmfile-child.yaml.gotmpl
+++ b/helmfile/apps/collabora/helmfile-child.yaml.gotmpl
@@ -18,6 +18,7 @@ releases:
     version: "{{ .Values.charts.collabora.version }}"
     values:
       - "values.yaml.gotmpl"
+      - {{ .Values.customization.release.collaboraOnline | default "additionalValues: false" }}
     installed: {{ .Values.collabora.enabled }}
 
 commonLabels:
diff --git a/helmfile/apps/cryptpad/helmfile-child.yaml.gotmpl b/helmfile/apps/cryptpad/helmfile-child.yaml.gotmpl
index e4497fe6..7e1c8ead 100644
--- a/helmfile/apps/cryptpad/helmfile-child.yaml.gotmpl
+++ b/helmfile/apps/cryptpad/helmfile-child.yaml.gotmpl
@@ -18,6 +18,7 @@ releases:
     version: "{{ .Values.charts.cryptpad.version }}"
     values:
       - "values.yaml.gotmpl"
+      - {{ .Values.customization.release.cryptpad | default "additionalValues: false" }}
     installed: {{ .Values.cryptpad.enabled }}
 
 commonLabels:
diff --git a/helmfile/apps/element/helmfile-child.yaml.gotmpl b/helmfile/apps/element/helmfile-child.yaml.gotmpl
index 6a9159c5..a6f81f17 100644
--- a/helmfile/apps/element/helmfile-child.yaml.gotmpl
+++ b/helmfile/apps/element/helmfile-child.yaml.gotmpl
@@ -39,6 +39,7 @@ releases:
     version: "{{ .Values.charts.element.version }}"
     values:
       - "values-element.yaml.gotmpl"
+      - {{ .Values.customization.release.opendeskElement | default "additionalValues: false" }}
     installed: {{ .Values.element.enabled }}
     timeout: 900
 
@@ -47,6 +48,7 @@ releases:
     version: "{{ .Values.charts.elementWellKnown.version }}"
     values:
       - "values-well-known.yaml.gotmpl"
+      - {{ .Values.customization.release.opendeskWellKnown | default "additionalValues: false" }}
     installed: {{ .Values.element.enabled }}
     timeout: 900
 
@@ -55,6 +57,7 @@ releases:
     version: "{{ .Values.charts.synapseWeb.version }}"
     values:
       - "values-synapse-web.yaml.gotmpl"
+      - {{ .Values.customization.release.opendeskSynapseWeb | default "additionalValues: false" }}
     installed: {{ .Values.element.enabled }}
     timeout: 900
 
@@ -63,6 +66,7 @@ releases:
     version: "{{ .Values.charts.synapse.version }}"
     values:
       - "values-synapse.yaml.gotmpl"
+      - {{ .Values.customization.release.opendeskSynapse | default "additionalValues: false" }}
     installed: {{ .Values.element.enabled }}
     timeout: 900
 
diff --git a/helmfile/apps/intercom-service/helmfile-child.yaml.gotmpl b/helmfile/apps/intercom-service/helmfile-child.yaml.gotmpl
index bcc2bd6d..70ce779c 100644
--- a/helmfile/apps/intercom-service/helmfile-child.yaml.gotmpl
+++ b/helmfile/apps/intercom-service/helmfile-child.yaml.gotmpl
@@ -18,6 +18,7 @@ releases:
     version: "{{ .Values.charts.intercomService.version }}"
     values:
       - "values.yaml.gotmpl"
+      - {{ .Values.customization.release.intercomService | default "additionalValues: false" }}
     installed: {{ .Values.intercom.enabled }}
 
 commonLabels:
diff --git a/helmfile/apps/jitsi/helmfile-child.yaml.gotmpl b/helmfile/apps/jitsi/helmfile-child.yaml.gotmpl
index 18148c4b..87cf3032 100644
--- a/helmfile/apps/jitsi/helmfile-child.yaml.gotmpl
+++ b/helmfile/apps/jitsi/helmfile-child.yaml.gotmpl
@@ -18,6 +18,7 @@ releases:
     version: "{{ .Values.charts.jitsi.version }}"
     values:
       - "values-jitsi.yaml.gotmpl"
+      - {{ .Values.customization.release.jitsi | default "additionalValues: false" }}
     installed: {{ .Values.jitsi.enabled }}
     timeout: 900
 
diff --git a/helmfile/apps/migrations-post/helmfile-child.yaml.gotmpl b/helmfile/apps/migrations-post/helmfile-child.yaml.gotmpl
index 82422606..0e6299aa 100644
--- a/helmfile/apps/migrations-post/helmfile-child.yaml.gotmpl
+++ b/helmfile/apps/migrations-post/helmfile-child.yaml.gotmpl
@@ -21,6 +21,7 @@ releases:
     values:
       - "values.yaml.gotmpl"
       - "../../shared/migrations.yaml.gotmpl"
+      - {{ .Values.customization.release.migrationsPost | default "additionalValues: false" }}
     installed: {{ .Values.migrations.enabled }}
     timeout: 900
 
diff --git a/helmfile/apps/migrations-pre/helmfile-child.yaml.gotmpl b/helmfile/apps/migrations-pre/helmfile-child.yaml.gotmpl
index d83ae3d7..c67908a2 100644
--- a/helmfile/apps/migrations-pre/helmfile-child.yaml.gotmpl
+++ b/helmfile/apps/migrations-pre/helmfile-child.yaml.gotmpl
@@ -21,6 +21,7 @@ releases:
     values:
       - "values.yaml.gotmpl"
       - "../../shared/migrations.yaml.gotmpl"
+      - {{ .Values.customization.release.migrationsPre | default "additionalValues: false" }}
     installed: {{ .Values.migrations.enabled }}
     timeout: 900
 
diff --git a/helmfile/apps/nextcloud/helmfile-child.yaml.gotmpl b/helmfile/apps/nextcloud/helmfile-child.yaml.gotmpl
index e032381e..d80721b5 100644
--- a/helmfile/apps/nextcloud/helmfile-child.yaml.gotmpl
+++ b/helmfile/apps/nextcloud/helmfile-child.yaml.gotmpl
@@ -25,6 +25,7 @@ releases:
     version: "{{ .Values.charts.nextcloudManagement.version }}"
     values:
       - "values-nextcloud-mgmt.yaml.gotmpl"
+      - {{ .Values.customization.release.opendeskNextcloudManagement | default "additionalValues: false" }}
     waitForJobs: true
     wait: true
     installed: {{ .Values.nextcloud.enabled }}
@@ -34,6 +35,7 @@ releases:
     version: "{{ .Values.charts.nextcloud.version }}"
     values:
       - "values-nextcloud.yaml.gotmpl"
+      - {{ .Values.customization.release.opendeskNextcloud | default "additionalValues: false" }}
     needs:
       - "opendesk-nextcloud-management"
     installed: {{ .Values.nextcloud.enabled }}
diff --git a/helmfile/apps/nubus/helmfile-child.yaml.gotmpl b/helmfile/apps/nubus/helmfile-child.yaml.gotmpl
index 615ab61e..58d7ff1e 100644
--- a/helmfile/apps/nubus/helmfile-child.yaml.gotmpl
+++ b/helmfile/apps/nubus/helmfile-child.yaml.gotmpl
@@ -29,6 +29,7 @@ releases:
       - "values-nubus.yaml.gotmpl"
       - "values-opendesk-customization.yaml.gotmpl"
       - "values-opendesk-images.yaml.gotmpl"
+      - {{ .Values.customization.release.ums | default "additionalValues: false" }}
     installed: {{ .Values.nubus.enabled }}
     timeout: 900
   # OpenDesk Keycloak Bootstrap Chart
@@ -37,6 +38,7 @@ releases:
     version: "{{ .Values.charts.opendeskKeycloakBootstrap.version }}"
     values:
       - "values-opendesk-keycloak-bootstrap.yaml.gotmpl"
+      - {{ .Values.customization.release.opendeskKeycloakBootstrap | default "additionalValues: false" }}
     needs:
       - "ums"
     installed: {{ .Values.nubus.enabled }}
diff --git a/helmfile/apps/open-xchange/helmfile-child.yaml.gotmpl b/helmfile/apps/open-xchange/helmfile-child.yaml.gotmpl
index 048d061e..86a7f203 100644
--- a/helmfile/apps/open-xchange/helmfile-child.yaml.gotmpl
+++ b/helmfile/apps/open-xchange/helmfile-child.yaml.gotmpl
@@ -38,6 +38,7 @@ releases:
     version: "{{ .Values.charts.dovecot.version }}"
     values:
       - "values-dovecot.yaml.gotmpl"
+      - {{ .Values.customization.release.dovecot | default "additionalValues: false" }}
     installed: {{ .Values.dovecot.enabled }}
     timeout: 900
 
@@ -47,6 +48,7 @@ releases:
     values:
       - "values-openxchange.yaml.gotmpl"
       - "values-openxchange-enterprise-contact-picker.yaml.gotmpl"
+      - {{ .Values.customization.release.openXchange | default "additionalValues: false" }}
     installed: {{ .Values.oxAppsuite.enabled }}
     timeout: 900
 
@@ -55,6 +57,7 @@ releases:
     version: "{{ .Values.charts.openXchangeAppSuiteBootstrap.version }}"
     values:
       - "values-openxchange-bootstrap.yaml.gotmpl"
+      - {{ .Values.customization.release.opendeskOpenXchangeBootstrap | default "additionalValues: false" }}
     installed: {{ .Values.oxAppsuite.enabled }}
     timeout: 900
 
diff --git a/helmfile/apps/openproject-bootstrap/helmfile-child.yaml.gotmpl b/helmfile/apps/openproject-bootstrap/helmfile-child.yaml.gotmpl
index dfcf2f21..fbf7b677 100644
--- a/helmfile/apps/openproject-bootstrap/helmfile-child.yaml.gotmpl
+++ b/helmfile/apps/openproject-bootstrap/helmfile-child.yaml.gotmpl
@@ -20,6 +20,7 @@ releases:
     waitForJobs: true
     values:
       - "values.yaml.gotmpl"
+      - {{ .Values.customization.release.opendeskOpenprojectBootstrap | default "additionalValues: false" }}
     installed: {{ .Values.openproject.enabled }}
     timeout: 900
 
diff --git a/helmfile/apps/openproject/helmfile-child.yaml.gotmpl b/helmfile/apps/openproject/helmfile-child.yaml.gotmpl
index 27313f19..5be55bf9 100644
--- a/helmfile/apps/openproject/helmfile-child.yaml.gotmpl
+++ b/helmfile/apps/openproject/helmfile-child.yaml.gotmpl
@@ -20,6 +20,7 @@ releases:
     waitForJobs: true
     values:
       - "values.yaml.gotmpl"
+      - {{ .Values.customization.release.openproject | default "additionalValues: false" }}
     installed: {{ .Values.openproject.enabled }}
     timeout: 1500
 
diff --git a/helmfile/apps/provisioning/helmfile-child.yaml.gotmpl b/helmfile/apps/provisioning/helmfile-child.yaml.gotmpl
index 227bd877..c40eda90 100644
--- a/helmfile/apps/provisioning/helmfile-child.yaml.gotmpl
+++ b/helmfile/apps/provisioning/helmfile-child.yaml.gotmpl
@@ -15,6 +15,7 @@ releases:
     version: "{{ .Values.charts.oxConnector.version }}"
     values:
       - "values-oxconnector.yaml.gotmpl"
+      - {{ .Values.customization.release.oxConnector | default "additionalValues: false" }}
     installed: {{ .Values.oxConnector.enabled }}
 
 commonLabels:
diff --git a/helmfile/apps/services/helmfile-child.yaml.gotmpl b/helmfile/apps/services/helmfile-child.yaml.gotmpl
index 218cd5ad..502204b3 100644
--- a/helmfile/apps/services/helmfile-child.yaml.gotmpl
+++ b/helmfile/apps/services/helmfile-child.yaml.gotmpl
@@ -119,6 +119,7 @@ releases:
     version: "{{ .Values.charts.otterize.version }}"
     values:
       - "values-otterize.yaml.gotmpl"
+      - {{ .Values.customization.release.opendeskOtterize | default "additionalValues: false" }}
     installed: {{ .Values.security.otterizeIntents.enabled }}
     timeout: 900
 
@@ -127,6 +128,7 @@ releases:
     version: "{{ .Values.charts.home.version }}"
     values:
       - "values-home.yaml.gotmpl"
+      - {{ .Values.customization.release.opendeskHome | default "additionalValues: false" }}
     installed: {{ .Values.home.enabled }}
 
   - name: "opendesk-certificates"
@@ -134,6 +136,7 @@ releases:
     version: "{{ .Values.charts.certificates.version }}"
     values:
       - "values-certificates.yaml.gotmpl"
+      - {{ .Values.customization.release.opendeskCertificates | default "additionalValues: false" }}
     installed: {{ .Values.certificates.enabled }}
     timeout: 900
 
@@ -142,6 +145,7 @@ releases:
     version: "{{ .Values.charts.redis.version }}"
     values:
       - "values-redis.yaml.gotmpl"
+      - {{ .Values.customization.release.redis | default "additionalValues: false" }}
     installed: {{ .Values.redis.enabled }}
     timeout: 900
 
@@ -150,6 +154,7 @@ releases:
     version: "{{ .Values.charts.memcached.version }}"
     values:
       - "values-memcached.yaml.gotmpl"
+      - {{ .Values.customization.release.memcached | default "additionalValues: false" }}
     installed: {{ .Values.memcached.enabled }}
     timeout: 900
 
@@ -158,6 +163,7 @@ releases:
     version: "{{ .Values.charts.postgresql.version }}"
     values:
       - "values-postgresql.yaml.gotmpl"
+      - {{ .Values.customization.release.postgresql | default "additionalValues: false" }}
     installed: {{ .Values.postgresql.enabled }}
     timeout: 900
 
@@ -166,6 +172,7 @@ releases:
     version: "{{ .Values.charts.mariadb.version }}"
     values:
       - "values-mariadb.yaml.gotmpl"
+      - {{ .Values.customization.release.mariadb | default "additionalValues: false" }}
     installed: {{ .Values.mariadb.enabled }}
     timeout: 900
 
@@ -174,6 +181,7 @@ releases:
     version: "{{ .Values.charts.postfix.version }}"
     values:
       - "values-postfix.yaml.gotmpl"
+      - {{ .Values.customization.release.postfix | default "additionalValues: false" }}
     installed: {{ .Values.postfix.enabled }}
     timeout: 900
 
@@ -182,6 +190,7 @@ releases:
     version: "{{ .Values.charts.dkimpy.version }}"
     values:
       - "values-dkimpy.yaml.gotmpl"
+      - {{ .Values.customization.release.opendeskDkimpyMilter | default "additionalValues: false" }}
     installed: {{ .Values.dkimpy.enabled }}
     timeout: 900
 
@@ -190,6 +199,7 @@ releases:
     version: "{{ .Values.charts.clamav.version }}"
     values:
       - "values-clamav-distributed.yaml.gotmpl"
+      - {{ .Values.customization.release.clamav | default "additionalValues: false" }}
     installed: {{ .Values.clamavDistributed.enabled }}
     timeout: 900
 
@@ -198,6 +208,7 @@ releases:
     version: "{{ .Values.charts.clamavSimple.version }}"
     values:
       - "values-clamav-simple.yaml.gotmpl"
+      - {{ .Values.customization.release.clamavSimple | default "additionalValues: false" }}
     installed: {{ .Values.clamavSimple.enabled }}
     timeout: 900
 
@@ -206,6 +217,7 @@ releases:
     version: "{{ .Values.charts.minio.version }}"
     values:
       - "values-minio.yaml.gotmpl"
+      - {{ .Values.customization.release.minio | default "additionalValues: false" }}
     installed: {{ .Values.minio.enabled }}
     timeout: 900
 
diff --git a/helmfile/apps/xwiki/helmfile-child.yaml.gotmpl b/helmfile/apps/xwiki/helmfile-child.yaml.gotmpl
index 64ad8174..347601bf 100644
--- a/helmfile/apps/xwiki/helmfile-child.yaml.gotmpl
+++ b/helmfile/apps/xwiki/helmfile-child.yaml.gotmpl
@@ -19,6 +19,7 @@ releases:
     wait: true
     values:
       - "values.yaml.gotmpl"
+      - {{ .Values.customization.release.xwiki | default "additionalValues: false" }}
     installed: {{ .Values.xwiki.enabled }}
     timeout: 900
 
diff --git a/helmfile/environments/default/customization.yaml b/helmfile/environments/default/customization.yaml
new file mode 100644
index 00000000..ccbd1066
--- /dev/null
+++ b/helmfile/environments/default/customization.yaml
@@ -0,0 +1,59 @@
+# SPDX-FileCopyrightText: 2024 Zentrum für Digitale Souveränität der Öffentlichen Verwaltung (ZenDiS) GmbH
+# SPDX-License-Identifier: Apache-2.0
+---
+# This variable allows customization of helmfile releases by loading custom values file.
+# Example:
+# customization:
+#   release:
+#     collaboraOnline: /path/to/additional/file.yaml
+customization:
+  release:
+    # collabora
+    collaboraOnline: ~
+    # cryptpad
+    cryptpad: ~
+    # element
+    opendeskElement: ~
+    opendeskWellKnown: ~
+    opendeskSynapseWeb: ~
+    opendeskSynapse: ~
+    # intercom-service
+    intercomService: ~
+    # jitsi
+    jitsi: ~
+    # migrations-post
+    migrationsPost: ~
+    # migrations-pre
+    migrationsPre: ~
+    # nextcloud
+    opendeskNextcloudManagement: ~
+    opendeskNextcloud: ~
+    # nubus
+    ums: ~
+    opendeskKeycloakBootstrap: ~
+    # open-xchange
+    dovecot: ~
+    openXchange: ~
+    opendeskOpenXchangeBootstrap: ~
+    # openproject
+    openproject: ~
+    # openproject-bootstrap
+    opendeskOpenprojectBootstrap: ~
+    # provisioning
+    oxConnector: ~
+    # services
+    opendeskOtterize: ~
+    opendeskHome: ~
+    opendeskCertificates: ~
+    redis: ~
+    memcached: ~
+    postgresql: ~
+    mariadb: ~
+    postfix: ~
+    opendeskDkimpyMilter: ~
+    clamav: ~
+    clamavSimple: ~
+    minio: ~
+    # xwiki
+    xwiki: ~
+...