Jetson AGX Orin 64G deployment fails on Python 3.10 due to datetime.UTC and WebSocket timeout/keepalive issues

Environment

• Platform: NVIDIA Jetson
• Python: 3.10.20
• OpenPI branch: main
• Deployment type: Local policy server/client deployment
• PyTorch: Jetson-compatible GPU build

Summary

When deploying OpenPI on an NVIDIA Jetson device, we encountered two compatibility issues:

1. datetime.UTC is unavailable in Python 3.10.
2. The WebSocket client may terminate during slow server startup or long-running inference because of the default timeout and keepalive settings.