UNRAID 6+ (PLEX SETUP) Nvidia and Intel setup Guide.

Thank you and welcome to the channel

NVIDIA:
Extra Parameters = --runtime=nvidia
NVIDIA_VISIBLE_DEVICES = GPU-00000000000000 or all
NVIDIA_DRIVER_CAPABILITIES = all

Or

Intel:
Extra parameter: --device=/dev/dri

Related Page: Wikipedia: Intel Quick Sync Video (encoding/decoding) https://en.wikipedia.org/wiki/Intel_Quick_Sync_Video#Hardware_decoding_and_encoding

Related Page: Wikipedia: NVIDIA hardware decoding
https://en.wikipedia.org/wiki/Nvidia_NVDEC

Related Page: Enabling Hardware Transcoding for Docker
https://github.com/plexinc/pms-docker#intel-quick-sync-hardware-transcoding-support

Plex: Hardware Transcoding
https://support.plex.tv/articles/115002178853-using-hardware-accelerated-streaming/