Exemplo de código Limbo

(hello.b)

implement Hello;

include "sys.m";
        sys: Sys;
include "draw.m";

Hello: module
{
        init:  fn(ctxt: ref Draw->Context, argv: list of string);
};

init(ctxt: ref Draw->Context, argv: list of string)
{
        sys = load Sys Sys->PATH;
        sys->print("hello, world\n");
}