Hassio addons - Jellyfin, anyone get Hardware Acceleration working?

I’m running HAOS on a little n100 minipc and as its being massively underused from a hardware point-of-view, I thought I’d start running some add-ons on it. Jellyfin is top of my list as the N100 is plenty good enough with Quicksync for basic video stuff. The addon installs fine and I’ve connected it to my NAS but the hardware acceleration doesnt work. Ususally, this is resolved by passing through /dev/dri to the container but I have no idea how to do this in HAOS.
Has anyone reading this managed to get it working and if so, can they share how?
Cheers