Downsizing: replace db, cleanup

config/packages/doctrine.yaml

@@ -1,10 +1,14 @@
 doctrine:
     dbal:
         url: '%env(resolve:DATABASE_URL)%'
-        driver: pdo_pgsql
+        driver: pdo_mysql
         # IMPORTANT: You MUST configure your server version,
         # either here or in the DATABASE_URL env var (see .env file)
-        #server_version: '16'
+        #server_version: '8.0'
+        charset: utf8mb4
+        default_table_options:
+            charset: utf8mb4
+            collate: utf8mb4_unicode_ci
 
         profiling_collect_backtrace: '%kernel.debug%'
         use_savepoints: true
@@ -15,7 +19,7 @@ doctrine:
         validate_xml_mapping: true
         naming_strategy: doctrine.orm.naming_strategy.underscore_number_aware
         identity_generation_preferences:
-            Doctrine\DBAL\Platforms\PostgreSQLPlatform: identity
+            Doctrine\DBAL\Platforms\MySQLPlatform: auto
         auto_mapping: true
         mappings:
             App: