Once again attempting the impossible. (c on ti-84+)

New TLDR: C Hello world program doesn't work when compiled to .8xk (arch linux, ti-84+)

UPDATE: I have used rabbitsign to get basicbuilder's .hex outputs into .8xk app files. However my only testing uses 8xp files taken from my own TIbasic code written on the calcultor. When I try to use the z88dk compiler to turn my simple c code into .8xp (or .83p) files they cause "Err: Undefined". Is this caused by dumb compiler options or because there's no standard output on the calculator.

#include <stdio.h>
int main() { 
    printf("Hello World!");
    return 0;
}