PS2 Flashcart? (Memory Card with SD Slot) idea

So I was thinking about somthing and for all you Flashcart sellers and hardmodders take a note! Ok the GameCube had Unofficial Memcards with SD slots in them, The PlayStation2 is getting ready to be 20 years old in 2 more years (I'm Old) and for some people who want to relive "childhood memories" would get one they got the wires and the controller but there disc/memory card ect is missing

This is where a PS2 memory card with a SD slot comes in handy

You would download the FMCB installer...

PS2 Flashcart? (Memory Card with SD Slot) idea