I think this question may have been added a while ago but I thought I'd follow up since I haven't seen anything since 2020. Is there any kind of infrastructure to add consoles and/or hardware? That could be really nice to keep track of not just consoles but accessories and such.

I'd personally be ok with that, controller/ console variants stuff like that

Adding console support is definitely something I'd like to tackle...at some point. There's a surprising amount of research involved in order to get it accurate. Accessories are a bit of a mess as well, but easier to handle on a case-by-case basis. We have a handful of them already loaded, primarily for Saturn and Dreamcast, but also random Game Sharks, Game Genies, etc.

As long as the consoles were counted separately from games, I would definitely be for it. Including a comprehensive list of peripherals could be quite a task though.