diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
new file mode 100644
index 0000000..e125209
--- /dev/null
+++ b/.github/workflows/ci.yml
@@ -0,0 +1,34 @@
+name: Application CI
+
+on: pull_request
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  tests:
+    runs-on: ubuntu-latest
+    name: PHP CI ${{ matrix.php-versions }}
+    strategy:
+      matrix:
+        php-versions:
+          - 8.2
+          - 8.3
+
+    steps:
+      - name: Checkout sources
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+      - name: Add HTTP basic auth credentials
+        run: echo '${{ secrets.COMPOSER_AUTH }}' > $GITHUB_WORKSPACE/auth.json
+      - name: Setup PHP
+        uses: shivammathur/setup-php@v2
+        with:
+          php-version: ${{ matrix.php-versions }}
+          tools: composer:v2
+      - name: Install dependencies
+        run: composer install --no-interaction --no-progress
+      - name: Run unit tests
+        run: bin/atoum -ulr
diff --git a/.github/workflows/test.yml b/.github/workflows/static-analysis.yml
similarity index 63%
rename from .github/workflows/test.yml
rename to .github/workflows/static-analysis.yml
index 650a464..4ca85b8 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/static-analysis.yml
@@ -1,25 +1,23 @@
 on: push
-name: test
+name: Static Analysis
 
 jobs:
-  php-cs-fixer:
+  phpcsfixer:
     name: PHP Coding Standards Fixer
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
       - name: Add HTTP basic auth credentials
         run: echo '${{ secrets.COMPOSER_AUTH }}' > $GITHUB_WORKSPACE/auth.json
-      - name: Setup PHP
+      - name: Setup PHP environment
         uses: shivammathur/setup-php@v2
         with:
           php-version: 8.3
+          tools: composer
       - name: Install dependencies
-        uses: php-actions/composer@v6
-        with:
-          php_version: 8.3
-          args: --no-scripts --dev
-      - name: Php cs fixer
-        run: bin/php-cs-fixer fix
+        run: composer install --no-interaction --no-progress
+      - name: PHP Coding Standards Fixer
+        run: bin/php-cs-fixer fix --dry-run --diff
 
   phpstan:
     name: PHPStan Static Analysis
@@ -28,14 +26,12 @@ jobs:
       - uses: actions/checkout@v3
       - name: Add HTTP basic auth credentials
         run: echo '${{ secrets.COMPOSER_AUTH }}' > $GITHUB_WORKSPACE/auth.json
-      - name: Setup PHP
+      - name: Setup PHP environment
         uses: shivammathur/setup-php@v2
         with:
           php-version: 8.3
+          tools: composer
       - name: Install dependencies
-        uses: php-actions/composer@v6
-        with:
-          php_version: 8.3
-          args: --no-scripts --dev
+        run: composer install --no-interaction --no-progress
       - name: PHPStan Static Analysis
-        run: bin/phpstan --memory-limit=1G
+        run: bin/phpstan --memory-limit=1G --error-format=github
diff --git a/.travis.yml b/.travis.yml
deleted file mode 100644
index 83c0134..0000000
--- a/.travis.yml
+++ /dev/null
@@ -1,25 +0,0 @@
-language: php
-
-dist: focal
-sudo: required
-
-cache:
-    directories:
-        - vendor
-        - bin
-
-php:
-    - 8.0
-
-install:
-    - sudo apt-get update
-    - cd $TRAVIS_BUILD_DIR
-    - composer self-update
-    - composer install --optimize-autoloader --prefer-dist --no-scripts
-
-before_script:
-    - echo "xdebug.mode = coverage" >> ~/.phpenv/versions/$(phpenv version-name)/etc/php.ini
-
-script:
-    - bin/atoum -ulr
-
diff --git a/phpstan-baseline.neon b/phpstan-baseline.neon
index 4992be9..b2523fa 100644
--- a/phpstan-baseline.neon
+++ b/phpstan-baseline.neon
@@ -209,3 +209,8 @@ parameters:
 			message: "#^Method Rezzza\\\\SecurityBundle\\\\Security\\\\Firewall\\\\RequestSignatureProdiver\\:\\:supportsClass\\(\\) has parameter \\$class with no type specified\\.$#"
 			count: 1
 			path: Security/Firewall/RequestSignatureProdiver.php
+
+		-
+			message: "#^Method Rezzza\\\\SecurityBundle\\\\Security\\\\SignatureValidUser\\:\\:getUserIdentifier\\(\\) should return non\\-empty\\-string but returns ''\\.$#"
+			count: 1
+			path: Security/SignatureValidUser.php