Windows 7, 8, 8.1, 10 -> Fedora Workstation -> Fedora Silverblue -> NixOS

You can still get the Retroarch Citra core if that works for you.

I don’t use the Flatpak, but for me the rpc doesn’t seem to work for Steam games, it seems to work for everything else that supports it though.

They’re great on certain desktops, like Fedora’s Atomic Desktops, but you usually have to work around Flatpak specific issues. On NixOS there doesn’t seem to be a declarative way to install them.