I have no idea about the creality clone, but klipper runs perfectly fine
on a bananapi-m5 w/4gigs of dram in front of the printer. klipper
itself is a 2 part thing, one part replacing the usually crippled marlin
in the printers controller, by reflashing the controller card, the other
part massages the gcode on the way to the printer enhancing the printers
speed among other advantages.
Turns out that the K1 printer is Klipper under the hood and there's a way to hack it to gain full access (so I don't need the broken app).
Cheers
Patrick