Move to __main__.py to allow running as a module from pip

goosebit/__main__.py

@@ -0,0 +1,7 @@
+import uvicorn
+
+from goosebit import app
+from goosebit.settings import config
+
+if __name__ == "__main__":
+    uvicorn.run(app, host="0.0.0.0", port=config.port)