diff --git a/.env.example b/.env.example
new file mode 100644
index 0000000..1dcd64e
--- /dev/null
+++ b/.env.example
@@ -0,0 +1,2 @@
+IMAGE_TAG=latest
+MAIN_PORT=3000
diff --git a/configs/Production.json b/configs/Production.json
deleted file mode 100644
index f8478a0..0000000
--- a/configs/Production.json
+++ /dev/null
@@ -1,5 +0,0 @@
-{
-  "Server": {
-    "Port": 3004
-  }
-}
diff --git a/docker-compose.yml b/docker-compose.yml
index af7845d..a5b26b2 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -1,6 +1,6 @@
 services:
   app:
-    image: docker.lechner-systems.at/lechnersystems/ttm:${IMAGE_TAG}
+    image: docker.lechner-systems.at/lechnersystems/portfolio:${IMAGE_TAG}
     build:
       context: .
       dockerfile: Dockerfile
diff --git a/src/server.ts b/src/server.ts
index 1097012..f703131 100644
--- a/src/server.ts
+++ b/src/server.ts
@@ -6,7 +6,6 @@ import { dirname, join, resolve } from 'node:path';
 import { fileURLToPath } from 'node:url';
 
 import bootstrap from './main.server';
-import ProductionConfig from '../configs/Production.json';
 
 const serverDistFolder: string = dirname(fileURLToPath(import.meta.url));
 const browserDistFolder: string = resolve(serverDistFolder, '../browser');
@@ -39,9 +38,11 @@ app.get('**', (req: Request, res: Response, next: NextFunction): void => {
 });
 
 if (isMainModule(import.meta.url)) {
-  const port: number = ProductionConfig.Server.Port;
+  const envPort: number = Number.parseInt(process.env['MAIN_PORT'] ?? '', 10);
+  const port: number = Number.isFinite(envPort) ? envPort : 3000;
+
   app.listen(port, (): void => {
-    console.log(`✔️ Listening on Port ${port}`);
+    console.log(`Listening on port ${port}`);
   });
 }