Create app.py

app.py

@@ -0,0 +1,19 @@
+import os, zipfile, sys
+
+ZIP_NAME = "musicnbrain.zip"
+MARKER   = ".unzipped_ok"          # so we don't unzip twice
+
+def unzip_once():
+    if os.path.exists(ZIP_NAME) and not os.path.exists(MARKER):
+        with zipfile.ZipFile(ZIP_NAME, "r") as zf:
+            zf.extractall(".")
+        #  optionally delete the zip to save storage
+        os.remove(ZIP_NAME)
+        #  create a marker file so this runs only once
+        open(MARKER, "w").close()
+        print("✅  Unzipped successfully.")
+
+unzip_once()
+
+# After unzipping, do nothing else.
+# The Space will show “Running” but with an empty UI for now.