Forbble is a very, very, simple implementation of Forth, written in PebbLisp.
Forbble isn't very practical, but has been a great test-bed for finding areas
where PebbLisp is particularly lacking in features, or expressiveness.
Installs examples/* to /usr/share/pebblisp
A basic REPL is one of these examples, replacing the built-in C version
with one actually written in PebbLisp. It can be invoked the same way:
running `pl` without any arguments.