I would love to do that for an iOS keyboard, without a backend. I've built my own spell corrector going though the rabbit hole of tries and many other structure

I would love to do that for an iOS keyboard, without a backend. I've built my own spell corrector going though the rabbit hole of tries and many other structures. iOS keyboards are constrained to 40Mb of RAM, I presume it's still too big to use a language model without a backend. Would be really cool to finally achieve a smarter prediction in-device, though.