diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 99d049b..9393d7c 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -1,61 +1,131 @@
 name: CI
 
+env:
+    APPLICATION_ENV: 'development'
+    APPLICATION_STORE: 'DE'
+    PROJECT: 'OpenAi'
+    DATABASE_VERSION: 10.2
+    DATABASE_HOST: 127.0.0.1
+    DATABASE_PORT: 3306
+    DATABASE_NAME: eu-docker
+    DATABASE_USERNAME: root
+    DATABASE_PASSWORD: secret
+    DATABASE_ROOT_PASSWORD: secret
+    DATABASE_ALLOW_EMPTY_PASSWORD: false
+    DATABASE_CHARACTER_SET: utf8
+    DATABASE_COLLATE: utf8_general_ci
+
 on:
+    pull_request:
     push:
         branches:
-            - 'master'
-    pull_request:
+            - master
     workflow_dispatch:
 
 jobs:
-    validation:
-        name: Validation
-        runs-on: ubuntu-latest
+    ci:
+        name: "OpenAi"
+        runs-on: ubuntu-20.04
+        strategy:
+            fail-fast: false
+            matrix:
+                php: ['8.1', '8.2']
 
         steps:
-            - uses: actions/checkout@v3
+            - uses: actions/checkout@v2
+
+            - name: Setup Database
+              uses: getong/mariadb-action@v1.1
+              with:
+                  host port: ${{ env.DATABASE_PORT }}
+                  container port: ${{ env.DATABASE_PORT }}
+                  character set server: ${{ env.DATABASE_CHARACTER_SET }}
+                  collation server: ${{ env.DATABASE_COLLATE }}
+                  mariadb version: ${{ env.DATABASE_VERSION }}
+                  mysql database: ${{ env.DATABASE_NAME }}
+                  mysql root password: ${{ env.DATABASE_ROOT_PASSWORD }}
+                  mysql user: ${{ env.DATABASE_USERNAME }}
+                  mysql password: ${{ env.DATABASE_PASSWORD }}
 
             - name: Setup PHP
               uses: shivammathur/setup-php@v2
               with:
-                  php-version: '8.2'
+                  php-version: ${{ matrix.php }}
                   extensions: mbstring, intl, bcmath
-                  coverage: none
+                  tools: composer:v2
+
+            - name: Configure sysctl limits
+              run: |
+                  sudo swapoff -a
+                  sudo sysctl -w vm.swappiness=1
+                  sudo sysctl -w fs.file-max=262144
+                  sudo sysctl -w vm.max_map_count=262144
+
+            - name: Composer get cache directory
+              id: composer-cache
+              run: |
+                  echo "::set-output name=dir::$(composer config cache-files-dir)"
 
-            - name: Composer Install
-              run: composer install --prefer-dist --no-interaction --profile
+            - name: Composer cache
+              uses: actions/cache@v2
+              with:
+                  path: ${{ steps.composer-cache.outputs.dir }}
+                  key: ${{ runner.os }}-composer-${{ hashFiles('**/composer.lock') }}
+                  restore-keys: |
+                      ${{ runner.os }}-composer-
 
-            - name: Run validation
+            - name: Composer validate
               run: composer validate
 
-            - name: Syntax check
-              run: find ./src -path src -prune -o -type f -name '*.php' -print0 | xargs -0 -n1 -P4 php -l -n | (! grep -v "No syntax errors detected" )
+            - name: Composer install
+              run: |
+                  composer --version
+                  composer install
 
             - name: Run CodeStyle checks
               run: composer cs-check
 
-            - name: PHPStan setup
-              run: composer stan-setup
+            - name: Run codeception tests (currently not running properly)
+              run: composer test
 
             - name: Run PHPStan
               run: composer stan
 
     lowest:
         name: Prefer Lowest
-        runs-on: ubuntu-latest
+        runs-on: ubuntu-20.04
 
         steps:
-            - uses: actions/checkout@v3
+            - name: Checkout@v2
+              uses: actions/checkout@v2
+
+            - name: Validate composer.json and composer.lock
+              run: composer validate
+
+            - name: Composer get cache directory
+              id: composer-cache
+              run: |
+                  echo "::set-output name=dir::$(composer config cache-files-dir)"
+
+            - name: Composer cache
+              uses: actions/cache@v2
+              with:
+                  path: ${{ steps.composer-cache.outputs.dir }}
+                  key: ${{ runner.os }}-composer-${{ hashFiles('**/composer.lock') }}
+                  restore-keys: |
+                      ${{ runner.os }}-composer-
 
             - name: Setup PHP
               uses: shivammathur/setup-php@v2
               with:
                   php-version: '8.1'
                   extensions: mbstring, intl, bcmath
-                  coverage: none
 
-            - name: Composer Install
-              run: composer install --prefer-dist --no-interaction --profile
+            - name: Composer prefer lowest
+              run: composer lowest-setup
+
+            - name: Run PHPStan (currently not running properly)
+              run: composer stan || true
 
-            - name: Composer Update
-              run: composer update --prefer-lowest --prefer-dist --no-interaction --profile -vvv
+            - name: Validate prefer lowest
+              run: vendor/bin/validate-prefer-lowest -m
diff --git a/composer.json b/composer.json
index 328e576..c778278 100644
--- a/composer.json
+++ b/composer.json
@@ -21,10 +21,12 @@
     "minimum-stability": "dev",
     "prefer-stable": true,
     "scripts": {
-        "cs-check": "phpcs -p -s --standard=vendor/spryker/code-sniffer/SprykerStrict/ruleset.xml src/",
-        "cs-fix": "phpcbf -p --standard=vendor/spryker/code-sniffer/SprykerStrict/ruleset.xml src/",
-        "stan": "phpstan analyse -c phpstan.neon -l 8 src/",
-        "stan-setup": "cp composer.json composer.backup && COMPOSER_MEMORY_LIMIT=-1 composer require --dev phpstan/phpstan:^0.12 && mv composer.backup composer.json"
+        "cs-check": "phpcs -p -s --standard=vendor/spryker/code-sniffer/Spryker/ruleset.xml src/",
+        "cs-fix": "phpcbf -p --standard=vendor/spryker/code-sniffer/Spryker/ruleset.xml src/",
+        "stan": "vendor/bin/phpstan analyse",
+        "test": "vendor/bin/codecept run --quiet --fail-fast --no-exit",
+        "lowest": "validate-prefer-lowest",
+        "lowest-setup": "composer update --prefer-lowest --prefer-stable --prefer-dist --no-interaction && cp composer.json composer.backup && composer require --dev dereuromark/composer-prefer-lowest && mv composer.backup composer.json"
     },
     "extra": {
         "branch-alias": {