Update app.py

app.py

@@ -5,7 +5,9 @@ from pydub import AudioSegment
 import tempfile
 
 # Set OpenGL platform
-os.environ["PYOPENGL_PLATFORM"] = "osmesa"
+os.environ["PYOPENGL_PLATFORM"] = "egl"
+os.environ["MESA_GL_VERSION_OVERRIDE"] = "4.1"
+os.system('pip install /home/user/app/pyrender')
 
 # Paths to TalkShow demo script and configuration
 DEMO_SCRIPT_PATH = "scripts/demo.py"