PC Gamer published a blog on June 24 reporting on a Canadian modder named Belly Jelly who posted some photos of their latest project: They figured out the portable console is capable of holding a physically larger internal storage card than the one it comes with.

In response to PC Gamer’s story and Belly Jelly’s bulging Steam Deck mod, Yang directly warned folks: “please don’t do this.” Yang explained that the charging integrated circuits get “very hot” and that tangentially connected thermal pads “should not be moved.” More specifically, Yang seemed to decry the use of 2242 m.2 SSDs because they “draw more power and get hotter than what the Deck is designed for.”.

Kotaku has reached out to Belly Jelly, Valve, and Yang for comment.

Anyway, if you’re still wondering where your Steam Deck is right now, Yang confirmed on Twitter that Valve will begin sending out more of the handheld devices this Thursday to folks part of the Q3 ordering queue