On their Github you can download it. https://github.com/Helium314/HeliBoard
Scroll down to the glide typing section.
It should be the arm64 library that you need. When you click on load gesture typing library in Heliboard it should say what it wants
It’s a scam, anyway. I did it once with Progressive when I got my first car. Had good ratings, was promised a solid discount. Next bill comes and it’s the same amount as the previous bill. I call them and they say that the rate went up but with the discount it conveniently went back to the old rate.