diff --git a/README.md b/README.md
index 0e6ab14..ae36927 100644
--- a/README.md
+++ b/README.md
@@ -32,14 +32,12 @@ The backend server has a separate ingress, so API requests can get forwarded to
 The frontend server is running inside the pod on the address http://localhost:8080/iching. It provides an HTML homepage with a button. Upon pressing the button, the backend server will be called (to send an E-Mail).
 The frontend server has a separate ingress from the backend server, since the frontend server needs the 'rewrite target' annotation: So the Frontend is not running in the root folder but using the sub-path 'iching'.
 
-<!--## Testing
+## Testing
 The Jest unit tests can be run with
 
 ```bash
 $     npm test
 ```
--->
-
 
 ## Running the App
 
diff --git a/backend/broker.test.ts b/backend/broker.test.ts
index c4232d1..555a47a 100644
--- a/backend/broker.test.ts
+++ b/backend/broker.test.ts
@@ -1,5 +1,5 @@
-/*import { html } from "./broker";
-import { test } from "@jest/globals";
+import { html } from "./broker";
+//import { test } from "@jest/globals";
 
 jest.useFakeTimers();
 
@@ -17,4 +17,3 @@ test("Generate HTML for images", () => {
     expect(html("Images:\nOver the earth, the lake:\nThe image of Gathering Together.\nThus the superior man renews his weapons\nIn order to meet the unforseen."))
       .toBe("<p><h3>Images:</h3>Over the earth, the lake:<br>The image of Gathering Together.<br>Thus the superior man renews his weapons<br>In order to meet the unforseen.<br></p></div>");
 });
-*/
\ No newline at end of file
diff --git a/jest.config.ts b/old.jest.config.ts
similarity index 100%
rename from jest.config.ts
rename to old.jest.config.ts
diff --git a/package.json b/package.json
index 4bfb90a..ce50417 100644
--- a/package.json
+++ b/package.json
@@ -3,8 +3,7 @@
   "version": "1.0.0",
   "main": "broker.js",
   "scripts": {
-    "test": "jest --no-cache --force-exit",
-    "start:local": "tsc -p tsconfig.backend.json && tsc -p tsconfig.frontend.json && DEPLOY_MODE=local node dist/backend/server.js & npx http-server dist/frontend -p 8080 --cors --mime application/javascript=js"
+    "test": "jest --no-cache --force-exit"
   },
   "keywords": [],
   "author": "",
@@ -25,5 +24,9 @@
     "express": "^5.1.0",
     "http-server": "^14.1.1",
     "nodemailer": "^6.10.0"
-  }
+  },
+  "jest": {
+    "preset": "ts-jest",
+    "testEnvironment": "node"
+  }  
 }
diff --git a/tsconfig.backend.json b/tsconfig.backend.json
index db21beb..c5bc144 100644
--- a/tsconfig.backend.json
+++ b/tsconfig.backend.json
@@ -8,7 +8,6 @@
       "esModuleInterop": true,
       "skipLibCheck": true
     },
-    "include": [
-      "backend/**/*.ts"
-    ]
+    "include": ["backend/**/*.ts"],
+    "exclude": ["backend/**/*.test.ts"]
 }
\ No newline at end of file