diff --git a/.github/workflows/code-style.yml b/.github/workflows/code-style.yml
index 2182132..ca99265 100644
--- a/.github/workflows/code-style.yml
+++ b/.github/workflows/code-style.yml
@@ -10,8 +10,35 @@ jobs:
     cs:
         if: github.event_name != 'schedule'
         uses: shopware/github-actions/.github/workflows/cs-fixer.yml@main
+    get-matrix:
+        runs-on: ubuntu-latest
+        outputs:
+            matrix: ${{ steps.matrix.outputs.matrix }}
+        steps:
+            -   name: Checkout repository
+                uses: actions/checkout@v4
+
+            -   name: Get Shopware Version
+                id: shopware-constraint
+                run: echo "shopware_constraint=$(cat composer.json | jq -r '.require."shopware/core"')" >> $GITHUB_OUTPUT
+
+            -   name: Get Shopware Matrix
+                uses: tinect/github-shopware-matrix-generator@main
+                id: matrix
+                with:
+                    versionConstraint: ${{ steps.shopware-constraint.outputs.shopware_constraint }}
+                    allowEol: false
+                    justMinMaxShopware: false
+                    allowShopwareNext: true
+                    allowShopwareRC: false
+                    includePhpVersion: false
     phpstan:
+        name: PHPStan
+        needs: get-matrix
+        strategy:
+            fail-fast: false
+            matrix: ${{ fromJson(needs.get-matrix.outputs.matrix) }}
         uses: shopware/github-actions/.github/workflows/phpstan.yml@main
         with:
-          extensionName: FroshTools
-          shopwareVersion: v6.6.0.0-rc1
+            extensionName: FroshTools
+            shopwareVersion: ${{ matrix.shopware }}
diff --git a/phpstan.neon.dist b/phpstan.neon.dist
index aafcb7b..81c2d44 100644
--- a/phpstan.neon.dist
+++ b/phpstan.neon.dist
@@ -2,7 +2,8 @@ parameters:
     level: 8
     paths:
         - src
-    type_coverage:
-        return_type: 100
-        param_type: 98
-        property_type: 100
+
+    ignoreErrors:
+            -
+                message: "#^Out of .* possible param types, only .* %% actually have it\\. Add more param types to get over .* %%$#"
+                reportUnmatched: false
diff --git a/src/Components/Health/Checker/HealthChecker/MysqlChecker.php b/src/Components/Health/Checker/HealthChecker/MysqlChecker.php
index 4ee105d..485d13f 100644
--- a/src/Components/Health/Checker/HealthChecker/MysqlChecker.php
+++ b/src/Components/Health/Checker/HealthChecker/MysqlChecker.php
@@ -100,8 +100,9 @@ private function checkMysqlVersion(HealthCollection $collection, string $version
     private function extract(string $versionString): array
     {
         if (mb_stripos($versionString, 'mariadb') === false) {
-            if (mb_strpos($versionString, '-')) {
-                $versionString = mb_substr($versionString, 0, mb_strpos($versionString, '-'));
+            $versionMetaPos = mb_strpos($versionString, '-');
+            if ($versionMetaPos) {
+                $versionString = mb_substr($versionString, 0, $versionMetaPos);
             }
 
             return ['mysql' => $versionString];
diff --git a/src/Components/LineReader.php b/src/Components/LineReader.php
index b067113..de2972c 100644
--- a/src/Components/LineReader.php
+++ b/src/Components/LineReader.php
@@ -100,7 +100,7 @@ private static function readBackwards($fh, int $pos): \Generator
                 $pos -= $bufferSize;
             }
             fseek($fh, $pos);
-            if ($bufferSize < 0) {
+            if ($bufferSize < 1) {
                 throw new \RuntimeException('Buffer size cannot be negative');
             }
             $chunk = fread($fh, $bufferSize);