diff --git a/.gitlab/merge_request_templates/release.md b/.gitlab/merge_request_templates/release.md
index 85fd0f5f7d6543853cd309a3bbdca26dbcd7400e..8e9d55fcadf94f4dce312b6b873ffba518b9e6b6 100644
--- a/.gitlab/merge_request_templates/release.md
+++ b/.gitlab/merge_request_templates/release.md
@@ -1,6 +1,6 @@
 # RELEASEBEGLEITBLATT
 
-## GSB 11 Core Package
+## GSB 11 Metadata Cleaner Package
 
 Diese Version des GSB 11 Metadata Cleaner Package basiert auf TYPO3 12.4 und
 PHP 8.2.
diff --git a/README.md b/README.md
index dcfd6b84ec0330d1798d58283217989018490025..e123bea166347918d79598cc7e50beac2ab3c018 100644
--- a/README.md
+++ b/README.md
@@ -9,12 +9,26 @@ The extension `gsb_metadata_cleaner` helps the reduce the amount of data - espec
 
 It is part of the Government Side Builder 11.
 
-[Learn more about the GSB 11][gsb11-readme-url] and [dashboard and widgets][typo3-docs-url].
+[Learn more about the GSB 11][gsb11-readme-url].
 
 
 ## Installation
 The best way to install this extension is to start with the [GSB Sitepackage Kickstarter][kickstarter-url] extension.
 
+## Quick installation without GSB Sitepackage Kickstarter
+In a composer-based TYPO3 installation you can install the extension EXT:gsb_metadata_cleaner via composer:
+
+```sh
+composer config -g gitlab-domains gitlab.opencode.de && \
+composer config -g repositories.gsb-metadata-cleaner vcs https://gitlab.opencode.de/bmi/government-site-builder-11/extensions/gsb_metadata_cleaner
+```
+
+```sh
+composer require itzbund/gsb-metadata-cleaner
+```
+
+In TYPO3 installations above version 11.5 the extension will be automatically installed. You do not have to activate it manually.
+
 
 ## Configuration
 For each file storage you can configure (`TCA/TSconfig`) which fields (except for `copyright`/`Xmp-dc:Rights`, which are always kept) are preserved.
@@ -37,4 +51,3 @@ To get started, have a look at our [detailed contribution walkthrough](https://g
 <!-- https://www.markdownguide.org/basic-syntax/#reference-style-links -->
 [gsb11-readme-url]: https://git.gsb-itzbund.de/gsb11/extensions
 [kickstarter-url]: https://git.gsb-itzbund.de/gsb11/extensions/gsb_sitepackage
-[typo3-docs-url]: https://docs.typo3.org/c/typo3/cms-dashboard/10.4/en-us/Editor/Index.html
diff --git a/publiccode.yml b/publiccode.yml
new file mode 100644
index 0000000000000000000000000000000000000000..b2028d19c3f0088f39925666ea0d00a5de9e7259
--- /dev/null
+++ b/publiccode.yml
@@ -0,0 +1,82 @@
+# This repository adheres to the publiccode.yml standard by including this
+# metadata file that makes public software easily discoverable.
+# More info at https://github.com/italia/publiccode.yml
+
+publiccodeYmlVersion: '0.2'
+name: gsb_metadata_cleaner
+applicationSuite: Government Site Builder 11
+url: 'https://gitlab.opencode.de/bmi/government-site-builder-11/extensions/gsb_metadata_cleaner'
+releaseDate: '2024-05-07'
+developmentStatus: development
+softwareType: addon
+platforms:
+  - web
+categories:
+  - communications
+  - content-management
+maintenance:
+  type: contract
+  contacts:
+    - name: GSB 11 Development
+      email: governmentsitebuilder@bmi.bund.de
+  contractors:
+    - name: ITZBund - II B 2 - GSB 11 Team
+      until: '2024-06-30'
+legal:
+  license: GPL-3.0-or-later
+  mainCopyrightOwner: '2023 - 2024 Bundesrepublik Deutschland, vertreten durch das  BMI/ITZBund'
+localisation:
+  localisationReady: true
+  availableLanguages:
+    - de
+    - en
+description:
+  de:
+    genericName: content-management-system
+    shortDescription: GSB 11 - gsb_metadata_cleaner
+    longDescription: >
+      ## Bitte beachten Sie!
+
+      **Dieses Projekt spiegelt den aktuellen Stand der Entwicklung der gsb 11
+      Erweiterung wider. Es enthält Funktionen und Features, die noch nicht
+      durch einen Abnahmetest geprüft wurden. Bitte verwenden Sie die Version,
+      die mit dem vierteljährlichen Release oder einem Sicherheitsupdate
+      veröffentlicht wurde.**
+
+
+      ## Erweiterung: gsb\_metadata\_cleaner
+
+      Mit dem gsb\_matadata\_cleaner werden Meta-Daten beim Uoload aus Dateien entfernt.
+
+    features:
+      - Metadaten Entfernung
+    documentation: 'https://gitlab.opencode.de/bmi/government-site-builder-11/extensions/gsb_metadata_cleaner'
+  en:
+    genericName: content-management-system
+    shortDescription: GSB 11 - gsb_metadata_cleaner
+    longDescription: >
+      ## Please note!
+
+      **This project reflects the current state of development of the gsb 11
+      extension. It contains functions and features that have not been tested by
+      an acceptance test. Please use the version that was published with the
+      quarterly release or a security update.**
+
+
+      ## Extension: gsb\_metadata\_cleaner
+
+      The gsb\_matadata\_cleaner removes metadata from files during Uoload.
+
+    features:
+      - Metadaten Cleanup
+    documentation: 'https://gitlab.opencode.de/bmi/government-site-builder-11/extensions/gsb_metadata_cleaner'
+dependsOn:
+  open:
+    - name: TYPO3
+      versionMin: 12.4.0
+      versionMax: 12.4.99
+    - name: PHP
+      versionMin: '8.1'
+      versionMax: '8.3'
+    - name: exiftool
+    - name: qpdf