We are looking for the user not for what they like.

You want to show off an Anime grill Arch user? Make an Anime with a grill running Arch!

I still find it hard to imagine how useful it would be to run Arch on a grill though. You don’t really use a grill unattended and simple stuff like temperature cutoffs don’t need anything heavier than Femto, on top of which, high heat electronics tend to be much costlier, making it more of a wastage to add enough to run Arch.