Among emacs users, the helm completion framework is also very popular. Among FP enthusiasts, the helm FRP engine is pretty interesting, too. So, at least the

Among emacs users, the helm completion framework is also very popular. Among FP enthusiasts, the helm FRP engine is pretty interesting, too. So, at least the first 3 I mentioned are pretty well known in their respective communities. The last one is from the last Show HN I saw for a Helm project.