EmuDeck & Retroachievements: "Hardcore mode"? - eviltoast

Hi!

Recently, I came across both EmuDeck and retroachievements.org. Playing a little Silent Hill and checking my achievements for the game at the website, I saw they only counted as “softcore”, and reading up on the topic, I learned about something called “Hardcore Mode”. In this mode, an emulator won’t give you additional features of e.g. saving state etc., basically emulating the original experience as close as possible.
I’m by no means a completionist, but I wonder how this would feel like. I haven’t found any related setting in EmuDeck so far though and my googling skills fail me here. Does any of you folks have a hint where to enable that?