diff --git a/.github/workflows/maven-build.yml b/.github/workflows/maven-build.yml
index 10b1c2a..9c71792 100644
--- a/.github/workflows/maven-build.yml
+++ b/.github/workflows/maven-build.yml
@@ -3,6 +3,9 @@ name: maven-build
 on:
   push:
     branches: ['**/**']
+  pull_request:
+    branches: [main]
+    types: [opened, synchronize, reopened, ready_for_review]
 jobs:
   build:
     runs-on: ubuntu-latest
@@ -11,24 +14,33 @@ jobs:
       COM_SONATYPE_CENTRAL_POLARION_OPENSOURCE_TOKEN: ${{ secrets.COM_SONATYPE_CENTRAL_POLARION_OPENSOURCE_TOKEN }}
       COM_SONATYPE_CENTRAL_POLARION_OPENSOURCE_GPG_PASSPHRASE: ${{ secrets.COM_SONATYPE_CENTRAL_POLARION_OPENSOURCE_GPG_PASSPHRASE }}
       GITHUB_TOKEN: ${{ github.token }}
+      SONAR_TOKEN: ${{ secrets.SONAR_TOKEN }}
     steps:
-      - name: Checkout
+      - name: 📄 Checkout the repository
         uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683  # v4
+        with:
+          fetch-depth: 0
       - name: Set up JDK and Maven
         uses: actions/setup-java@8df1039502a15bceb9433410b1a100fbe190c53b  # v4
         with:
           distribution: adopt
           java-version: 17
           gpg-private-key: ${{ secrets.COM_SONATYPE_CENTRAL_POLARION_OPENSOURCE_GPG_PRIVATE_KEY }}
-      - name: Prepare Cache
+      - name: 📝 Get the project version
+        id: project_version
+        run: echo "project_version=$(mvn help:evaluate -Dexpression=project.version -q -DforceStdout)" >> $GITHUB_OUTPUT
+      - name: 📝 Store cache key
+        id: cache_key
+        run: echo "cache_key=${{ runner.os }}-mvn-${{ hashFiles('**/pom.xml') }}-${{ github.sha }}" >> $GITHUB_OUTPUT
+      - name: 💾 Prepare cache using cache key
         id: prepare-cache
         uses: actions/cache@6849a6489940f00c2f30c0fb92c6274307ccb58a  # v4
         with:
           path: |
             /home/runner/.m2
             /home/runner/work
-          key: ${{ runner.os }}-mvn-${{ hashFiles('**/pom.xml') }}
-      - name: Generate settings.xml
+          key: ${{ steps.cache_key.outputs.cache_key }}
+      - name: 🔘 Generate settings.xml for Maven
         uses: whelk-io/maven-settings-xml-action@9dc09b23833fa9aa7f27b63db287951856f3433d  # v22
         with:
           servers: >
@@ -58,21 +70,19 @@ jobs:
                 }
               }
             ]
-      - name: Print settings.xml
+      - name: 🔘 Print settings.xml
         run: cat /home/runner/.m2/settings.xml
-      - name: Build with Maven
-        run: mvn --batch-mode clean package
-      - name: Store project version
-        id: project_version
-        run: echo "project_version=$(mvn help:evaluate -Dexpression=project.version -q -DforceStdout)" >> $GITHUB_OUTPUT
-      - name: Store cache key
-        id: cache_key
-        run: echo "cache_key=${{ runner.os }}-mvn-${{ hashFiles('**/pom.xml') }}" >> $GITHUB_OUTPUT
+      - name: 📦 Build with Maven for Pushes
+        if: github.event_name == 'push'
+        run: mvn --batch-mode clean package sonar:sonar -Dsonar.branch.name=${{ github.head_ref }}
+      - name: 📦 Build with Maven for PRs
+        if: github.event_name == 'pull_request'
+        run: mvn --batch-mode clean package sonar:sonar -Dsonar.pullrequest.base=${{ github.base_ref }} -Dsonar.pullrequest.branch=${{ github.head_ref }} -Dsonar.pullrequest.key=${{ github.event.pull_request.number }}
     outputs:
       project_version: ${{ steps.project_version.outputs.project_version }}
       cache_key: ${{ steps.cache_key.outputs.cache_key }}
 
-  # deploy to Maven Central
+  # Deploy release to Maven Central
   deploy-maven-central:
     needs: build
     runs-on: ubuntu-latest
@@ -82,13 +92,13 @@ jobs:
       COM_SONATYPE_CENTRAL_POLARION_OPENSOURCE_TOKEN: ${{ secrets.COM_SONATYPE_CENTRAL_POLARION_OPENSOURCE_TOKEN }}
       COM_SONATYPE_CENTRAL_POLARION_OPENSOURCE_GPG_PASSPHRASE: ${{ secrets.COM_SONATYPE_CENTRAL_POLARION_OPENSOURCE_GPG_PASSPHRASE }}
     steps:
-      - name: Set up JDK and Maven
+      - name: 🧱 Set up JDK and Maven
         uses: actions/setup-java@8df1039502a15bceb9433410b1a100fbe190c53b  # v4
         with:
           distribution: adopt
           java-version: 17
           gpg-private-key: ${{ secrets.COM_SONATYPE_CENTRAL_POLARION_OPENSOURCE_GPG_PRIVATE_KEY }}
-      - name: Restore Cache
+      - name: 💾 Restore cache using cache key
         id: restore-cache
         uses: actions/cache@6849a6489940f00c2f30c0fb92c6274307ccb58a  # v4
         with:
@@ -96,10 +106,10 @@ jobs:
             /home/runner/.m2
             /home/runner/work
           key: ${{ needs.build.outputs.cache_key }}
-      - name: Publish to Maven Central
+      - name: 📦 Deploy artifacts to Maven Central
         run: mvn --batch-mode -Dmaven.test.skip=true deploy -P gpg-sign -P nexus-staging
 
-  # deploy to GitHub Packages
+  # Deploy release to GitHub Packages
   deploy-github-packages:
     needs: build
     runs-on: ubuntu-latest
@@ -110,21 +120,21 @@ jobs:
     env:
       GITHUB_TOKEN: ${{ github.token }}
     steps:
-      - name: Set up JDK and Maven
+      - name: 🧱 Set up JDK and Maven
         uses: actions/setup-java@8df1039502a15bceb9433410b1a100fbe190c53b  # v4
         with:
           distribution: adopt
           java-version: 17
-      - name: Cache
-        id: cache
+      - name: 💾 Restore cache using cache key
+        id: restore-cache
         uses: actions/cache@6849a6489940f00c2f30c0fb92c6274307ccb58a  # v4
         with:
           path: |
             /home/runner/.m2
             /home/runner/work
           key: ${{ needs.build.outputs.cache_key }}
-      - name: Publish to GitHub Packages
+      - name: 📦 Deploy artifacts to GitHub Packages
         run: mvn --batch-mode -Dmaven.test.skip=true -Dmaven.javadoc.skip=true -Dmaven.source.skip=true deploy -P deploy-github-packages
-      - name: Upload assets
-        run: cd ${{github.workspace}} && gh release upload v${{ needs.build.outputs.project_version }} target/*-${{ needs.build.outputs.project_version }}.jar
-        shell: bash
+      - name: 📦 Upload assets to GitHub Release
+        run: |-
+          gh release upload v${{ needs.build.outputs.project_version }} target/*-${{ needs.build.outputs.project_version }}.jar
diff --git a/.github/workflows/pr.yml b/.github/workflows/pr.yml
index 8fd1c40..841ba18 100644
--- a/.github/workflows/pr.yml
+++ b/.github/workflows/pr.yml
@@ -17,7 +17,7 @@ jobs:
           fetch-depth: 0
       - uses: actions/setup-python@0b93645e9fea7318ecaed2b359559ac225c90a2b  # v5
         with:
-          cache: pip  # caching pip dependencies
+          python-version: 3.x
       - run: pip install commitizen
       - name: Check commit messages
         run: cz check --rev-range origin/${GITHUB_BASE_REF}..
diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 47759ce..86174c7 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -76,11 +76,11 @@ Before you submit your Pull Request (PR) consider the following guidelines:
   is necessary because release notes are automatically generated from these messages.
 
      ```shell
-     git commit -a -S
+     git commit -a --gpg-sign
      ```
   Note: The optional commit `-a` command line option will automatically "add" and "rm" edited files.
 
-  Note: The command line option `-S` generates a signed commit, which is required to make a contribution (See [Developer Certificate of Origin](./LICENSES/DCO.txt))
+  Note: The command line option `-S/--gpg-sign` generates a signed commit, which is required to make a contribution (See [Developer Certificate of Origin](./LICENSES/DCO.txt))
 
 * Push your branch to GitHub:
 
diff --git a/pom.xml b/pom.xml
index 3bc7f1b..1d82a33 100644
--- a/pom.xml
+++ b/pom.xml
@@ -23,14 +23,14 @@
             <name>SBB Polarion Team</name>
             <email>polarion-opensource@sbb.ch</email>
             <organization>SBB AG</organization>
-            <organizationUrl>http://www.sbb.ch</organizationUrl>
+            <organizationUrl>https://www.sbb.ch</organizationUrl>
         </developer>
     </developers>
 
     <scm>
         <connection>scm:git:git://github.com/SchweizerischeBundesbahnen/ch.sbb.export-package-generator.git</connection>
         <developerConnection>scm:git:ssh://github.com/SchweizerischeBundesbahnen/ch.sbb.export-package-generator.git</developerConnection>
-        <url>http://github.com/SchweizerischeBundesbahnen/ch.sbb.export-package-generator/tree/main</url>
+        <url>https://github.com/SchweizerischeBundesbahnen/ch.sbb.export-package-generator/tree/main</url>
     </scm>
 
     <issueManagement>
@@ -56,7 +56,21 @@
         <maven-source-plugin.version>3.3.1</maven-source-plugin.version>
         <maven-surefire-plugin.version>3.5.1</maven-surefire-plugin.version>
 
+        <!-- Sonar and JaCoCo -->
+        <jacoco.version>0.8.12</jacoco.version>
+        <sonar.projectKey>SchweizerischeBundesbahnen_${project.artifactId}</sonar.projectKey>
+        <sonar.organization>schweizerischebundesbahnen</sonar.organization>
+        <sonar.projectName>${project.artifactId}</sonar.projectName>
+        <sonar.host.url>https://sonarcloud.io</sonar.host.url>
+        <sonar.java.coveragePlugin>jacoco</sonar.java.coveragePlugin>
+        <sonar.dynamicAnalysis>reuseReports</sonar.dynamicAnalysis>
+        <sonar.language>java</sonar.language>
+        <sonar.coverage.jacoco.xmlReportPaths>${project.basedir}/target/site/jacoco/jacoco.xml</sonar.coverage.jacoco.xmlReportPaths>
+        <sonar.verbose>true</sonar.verbose>
+        <sonar.qualitygate.wait>true</sonar.qualitygate.wait>
+
         <nexus-staging-maven-plugin.version>1.7.0</nexus-staging-maven-plugin.version>
+        <nexus-staging-maven-plugin.autoReleaseAfterClose>true</nexus-staging-maven-plugin.autoReleaseAfterClose>
     </properties>
 
     <dependencies>
@@ -109,7 +123,7 @@
                         <configuration>
                             <serverId>ossrh</serverId>
                             <nexusUrl>https://oss.sonatype.org/</nexusUrl>
-                            <autoReleaseAfterClose>true</autoReleaseAfterClose>
+                            <autoReleaseAfterClose>${nexus-staging-maven-plugin.autoReleaseAfterClose}</autoReleaseAfterClose>
                         </configuration>
                     </plugin>
                 </plugins>