GPU drivers

Hi there! I want to get Jellyfin (or Emby or plex or whatever, though jellyfin is my preference) to use my video card for transcoding. The media server will be running in a Docker container, and I think I can user nvidia-docker ( https://github.com/NVIDIA/nvidia-docker ) to get the job done. But for now, I can't even install the NVIDIA drivers, which seems to be a prerequisite. Following the guides I can find online, the package installation keeps failing, and running NVIDIA-smi says that no drivers are running. Halp, please!