I play on an EZ Flash Jr for my gameboy. No mod required. I think they run around $40 now. There are cheaper knock-off flash carts you can get though.
Actually EZ flash is a knock-off of Everdrive. Any of those are great options honestly. I’ve run mine for over a year now and I play it all the time. It’s as easy as popping the micro SD into my computer, putting the game file on it, and popping it back into the flash cart.