diff --git a/Dockerfile b/Dockerfile
index d5b6796..733a457 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -8,16 +8,11 @@ COPY tsconfig.json ./
 COPY tsconfig.backend.json ./
 COPY . .
 
-### NEW ###
 RUN npm install cors
-
 RUN npm install -g npm@11.2.0
 RUN npm install
 
-# Danach server.ts kompilieren, nachdem broker.mjs existiert
 RUN npx tsc -p tsconfig.backend.json
-
-# Danach können wir die Frontend-Dateien auch kompilieren
 RUN npx tsc -p tsconfig.frontend.json
 
 # 2. Rust build-Stage
@@ -29,25 +24,18 @@ FROM forgejo.edf-bootstrap.cx.fg1.ffm.osc.live/devfw-cicd/node:20.18.1
 
 WORKDIR /app
 
-# Kopiere Node-Modules und alle generierten Dateien
+# Copy node_modules and all generated data 
 COPY --from=build /app/node_modules ./node_modules
 COPY --from=build /app/dist ./dist
 COPY --from=build /app/frontend/index.html ./dist/frontend/
 COPY --from=build /app/package.json ./dist/backend/
 
-# Neu: Konfigurationsdatei ins Backend-Verzeichnis
-#COPY --from=build /app/backend/config.json ./dist/backend/
-
+# Copy iching library
 COPY --from=rust-build /usr/local/cargo/bin/iching /usr/local/bin/iching
 
-# Falls notwendig: Umbenennen von .js zu .mjs
+# Frontend: rename from .js to .mjs
 RUN find dist/frontend -name "*.js" -exec bash -c 'mv "$0" "${0%.js}.mjs"' {} \;
 
-# Starte den Backend-Server
-#CMD ["node", "--loader", "ts-node/esm", "/app/dist/backend/server.js"]
-# Starte den Frontend-Server
-#CMD ["npx", "http-server", "dist/frontend", "-p", "8080", "--mime", "application/javascript=js"]
-
 COPY start.sh ./start.sh
 RUN chmod +x ./start.sh
 
diff --git a/backend/broker.test.ts b/backend/broker.test.ts
index d3766ab..c4232d1 100644
--- a/backend/broker.test.ts
+++ b/backend/broker.test.ts
@@ -1,5 +1,5 @@
 /*import { html } from "./broker";
-import { test, beforeAll, afterAll } from "@jest/globals";
+import { test } from "@jest/globals";
 
 jest.useFakeTimers();
 
diff --git a/frontend/event.ts b/frontend/event.ts
index 321c88b..4a7a778 100644
--- a/frontend/event.ts
+++ b/frontend/event.ts
@@ -1,6 +1,5 @@
 function handleClick(): void {
   console.log("Der Button wurde geklickt!");
-  //alert("Hallo von TypeScript!");
 
   fetch("/iching/api/command", { method: "POST" })
     .then(res => res.text())
diff --git a/jest.config.js b/jest.config.js
deleted file mode 100644
index 7ee809b..0000000
--- a/jest.config.js
+++ /dev/null
@@ -1,6 +0,0 @@
-"use strict";
-module.exports = {
-    transform: {
-        "^.+\\.tsx?$": "ts-jest"
-    }
-};
diff --git a/start.sh b/start.sh
index c7274f8..a48ebb0 100644
--- a/start.sh
+++ b/start.sh
@@ -1,6 +1,5 @@
-#!/bin/bash
-# Starte Backend im Hintergrund
+# start backend in the background
 node dist/backend/server.js &
 
-# Starte Frontend
+# start frontend
 npx http-server dist/frontend -p 8080 --cors --mime application/javascript=js
\ No newline at end of file