Update app.py

app.py

@@ -7,9 +7,15 @@ import supervision as sv
 from inference import get_model
 
 app = FastAPI()
+import os
+
+# Set writable directories for matplotlib and Hugging Face cache
+os.environ["MPLCONFIGDIR"] = "/tmp/matplotlib"
+os.environ["TRANSFORMERS_CACHE"] = "/tmp/huggingface"
+os.environ["YOLO_CONFIG_DIR"] = "/tmp/Ultralytics"
 
 # Load the pre-trained model once when the server starts
-model = get_model(model_id="yolov8n")
+model = get_model(model_id="yolov8n-640")
 
 def gen_frames():
     # Open the default camera (index 0)