Carp requires writing bindings to call C functions or use types. Additionally, code modification isn't possible in Carp. When I say seamless, I'm going for as

Carp requires writing bindings to call C functions or use types. Additionally, code modification isn't possible in Carp. When I say seamless, I'm going for as close as possible, I.e. it should feel even easier to use C from Cakelisp than from C itself. The build system especially makes this possible.