feat: check whether we have a GPU or not

app.py

@@ -1,10 +1,13 @@
 from os import getenv
 from textwrap import dedent
+from torch import cuda
 
 import gradio as gr
 from src.automatikz.examples.webui.webui import build_ui, get_banner
 
-if getenv("SPACE_ID") == "nllg/AutomaTikZ":
+PUBLIC_DEMO = getenv("SPACE_ID") == "nllg/AutomaTikZ"
+
+if PUBLIC_DEMO and not cuda.is_available():
     with gr.Blocks(css=".gradio-container {text-align: center}", theme=gr.themes.Soft()) as demo:
         badge = "https://huggingface.co/datasets/huggingface/badges/resolve/main/duplicate-this-space-xl.svg"
         link = "https://huggingface.co/spaces/nllg/AutomaTikZ?duplicate=true"