Its mostly about approach. LFE (literally Lisp Flavored Erlang) is Erlang with an S-expression based syntax. Joxa is a self contained Lisp that happens to run on the Erlang VM.
Those are the core differences. Joxa also has some very clear and distinct goals of its own. Those goals are not really relevant to this discussion though.
Those are the core differences. Joxa also has some very clear and distinct goals of its own. Those goals are not really relevant to this discussion though.