Moonlight game streaming needs Sunshine host, not deprecated GameStream

Moonlight setup wikis still reference NVIDIA GameStream as the streaming host, but NVIDIA shut GameStream down in 2023. The modern replacement is the open-source Sunshine host, which pairs with Moonlight identically. For a rent-a-cloud-GPU-and-stream setup: install Windows + Sunshine on a GPU VM (Paperspace/Vast.ai/RunPod/Shadow), pair Moonlight from the client. Gotchas: prioritize a geographically close region (<40ms), and note that ephemeral GPU instances lose game installs each session and some datacenter GPUs are blocked by anti-cheat.