diff --git a/.github/workflows/.ruff.yaml b/.github/workflows/.ruff.yaml
new file mode 100644
index 0000000..cd077fb
--- /dev/null
+++ b/.github/workflows/.ruff.yaml
@@ -0,0 +1,31 @@
+name: Build and Push Docker Image
+
+on:
+  pull_request:
+    branches:
+      - main
+  workflow_dispatch:
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Setup python
+        uses: actions/setup-python@v4
+        with:
+          python-version: '3.12'
+      
+      - name: Install dependencies
+        run: |
+          python -m pip install --upgrade pip
+          pip install -r requirements.txt
+
+      - name: Run Ruff
+        run: |
+          pip install ruff
+          ruff format --check
+          ruff check
diff --git a/.ruff.toml b/.ruff.toml
new file mode 100644
index 0000000..3c2f83c
--- /dev/null
+++ b/.ruff.toml
@@ -0,0 +1,2 @@
+[lint]
+extend-select = ["I"]
\ No newline at end of file
diff --git a/.vscode/settings.json b/.vscode/settings.json
new file mode 100644
index 0000000..8604e94
--- /dev/null
+++ b/.vscode/settings.json
@@ -0,0 +1,4 @@
+{
+    "editor.formatOnSave": true,
+    "editor.defaultFormatter": "charliermarsh.ruff"
+}
\ No newline at end of file
diff --git a/src/api.py b/src/api.py
index 79ddc59..0a0465a 100644
--- a/src/api.py
+++ b/src/api.py
@@ -1,33 +1,32 @@
-from fastapi import FastAPI
-from fastapi import FastAPI, Request
-from fastapi.responses import HTMLResponse
-from fastapi.responses import FileResponse
-from fastapi.templating import Jinja2Templates
-from cachetools import cached, TTLCache
-from bs4 import BeautifulSoup
-import requests
-import re
 import logging
+import re
+
+import requests
+from bs4 import BeautifulSoup
+from cachetools import TTLCache, cached
+from fastapi import FastAPI, Request
+from fastapi.responses import FileResponse, HTMLResponse
+from fastapi.templating import Jinja2Templates
 
 logger = logging.getLogger("uvicorn.error")
-
 cache = TTLCache(maxsize=1, ttl=3600)
 app = FastAPI()
 templates = Jinja2Templates(directory="template")
-regex = re.compile(r'spätzle <sup>([^/]*)</sup>', re.IGNORECASE)
+regex = re.compile(r"spätzle <sup>([^/]*)</sup>", re.IGNORECASE)
+
 
 @cached(cache)
 def checkMensa():
     logger.info("Checking Mensa")
-    
-    try:
-        url = 'https://seezeit.com/essen/speiseplaene/mensa-giessberg/'
-        r = requests.get(url)
-        soup = BeautifulSoup(r.text, 'html.parser')
 
-        today = soup.find('a', class_='heute')['rel'][0]
-        today_menu = soup.find('div', id=f'tab{today}')
-        meals = today_menu.find_all('div', class_='title')
+    try:
+        url = "https://seezeit.com/essen/speiseplaene/mensa-giessberg/"
+        r = requests.get(url)
+        soup = BeautifulSoup(r.text, "html.parser")
+
+        today = soup.find("a", class_="heute")["rel"][0]
+        today_menu = soup.find("div", id=f"tab{today}")
+        meals = today_menu.find_all("div", class_="title")
 
         spaetzle = None
         for m in meals:
@@ -37,11 +36,11 @@ def checkMensa():
 
         if spaetzle is not None:
             ingredients = re.search(regex, str(spaetzle)).group(1)
-            if '28' in ingredients:
+            if "28" in ingredients:
                 answer = "Spätzle with egg today"
                 color = "green"
                 emoji = "✅"
-        
+
             else:
                 answer = "WARNING: Spätzle without egg today"
                 color = "red"
@@ -50,7 +49,7 @@ def checkMensa():
             answer = "No Spätzle today "
             color = "grey"
             emoji = "🤷"
-    except Exception as e:
+    except Exception:
         answer = "No menu today"
         color = "grey"
         emoji = "⛱️"
@@ -58,17 +57,22 @@ def checkMensa():
         logger.info(f"Answer: {answer}, Color: {color}, Emoji: {emoji}")
         return answer, color, emoji
 
+
 @app.get("/", response_class=HTMLResponse)
 async def root(request: Request):
     answer, color, emoji = checkMensa()
     return templates.TemplateResponse(
-        request=request, name="main.html", context={"text": answer, "color": color , "emoji": emoji}
+        request=request,
+        name="main.html",
+        context={"text": answer, "color": color, "emoji": emoji},
     )
 
+
 @app.get("/manifest.json")
 async def manifest(request: Request):
     return FileResponse(path="assets/manifest.json")
 
+
 @app.get("/icons/512.png")
 async def icon(request: Request):
     return FileResponse(path="assets/logo.png")