diff --git a/.idea/.gitignore b/.idea/.gitignore
new file mode 100644
index 0000000..13566b8
--- /dev/null
+++ b/.idea/.gitignore
@@ -0,0 +1,8 @@
+# Default ignored files
+/shelf/
+/workspace.xml
+# Editor-based HTTP Client requests
+/httpRequests/
+# Datasource local storage ignored files
+/dataSources/
+/dataSources.local.xml
diff --git a/.idea/TanstackTest.iml b/.idea/TanstackTest.iml
new file mode 100644
index 0000000..24643cc
--- /dev/null
+++ b/.idea/TanstackTest.iml
@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<module type="WEB_MODULE" version="4">
+  <component name="NewModuleRootManager">
+    <content url="file://$MODULE_DIR$">
+      <excludeFolder url="file://$MODULE_DIR$/.tmp" />
+      <excludeFolder url="file://$MODULE_DIR$/temp" />
+      <excludeFolder url="file://$MODULE_DIR$/tmp" />
+    </content>
+    <orderEntry type="inheritedJdk" />
+    <orderEntry type="sourceFolder" forTests="false" />
+  </component>
+</module>
\ No newline at end of file
diff --git a/.idea/modules.xml b/.idea/modules.xml
new file mode 100644
index 0000000..b12e0e1
--- /dev/null
+++ b/.idea/modules.xml
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectModuleManager">
+    <modules>
+      <module fileurl="file://$PROJECT_DIR$/.idea/TanstackTest.iml" filepath="$PROJECT_DIR$/.idea/TanstackTest.iml" />
+    </modules>
+  </component>
+</project>
\ No newline at end of file
diff --git a/.idea/prettier.xml b/.idea/prettier.xml
new file mode 100644
index 0000000..b0c1c68
--- /dev/null
+++ b/.idea/prettier.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="PrettierConfiguration">
+    <option name="myConfigurationMode" value="AUTOMATIC" />
+  </component>
+</project>
\ No newline at end of file
diff --git a/.idea/vcs.xml b/.idea/vcs.xml
new file mode 100644
index 0000000..35eb1dd
--- /dev/null
+++ b/.idea/vcs.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="VcsDirectoryMappings">
+    <mapping directory="" vcs="Git" />
+  </component>
+</project>
\ No newline at end of file
diff --git a/docker-compose.yml b/docker-compose.yml
index 03c2ea4..a7ed768 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -1,14 +1,17 @@
+version: '3.8'
 services:
-  db:
-    image: postgres:17.0
-    hostname: ${DB_HOST}
+  app:
+    # Stelle sicher, dass hier das Build-Kontext oder Image 
+    # für deinen Node.js-Container korrekt ist (siehe vorherige Antwort)
+    build:
+      context: .
+      dockerfile: Dockerfile
+    
     ports:
-      - "5432:${DB_PORT}"
+      - "3000:3000"
+
     environment:
-      - POSTGRES_PASSWORD=${DB_PASSWORD}
-      - POSTGRES_USER=${DB_USER}
-      - POSTGRES_DB=${DB_NAME}
-    volumes:
-      - pgdata:/var/lib/postgresql/data
-volumes:
-  pgdata:
+      # Hier injiziert Coolify den kompletten Datenbank-Link
+      # Dein Code verwendet diese Variable, um sich zu verbinden
+      DATABASE_URL: ${DATABASE_URL}
+      # Entferne alle DB_HOST, DB_USER, etc.
\ No newline at end of file