They also have a good project [1] of migrating Emacs codebase and plugins support on Guile - partly by adding Elisp support in Guile, partly by rewriting Emacs itself.<p>[1] <a href="https:&#x2F;&#x2F;www.emacswiki.org&#x2F;emacs&#x2F;GuileEmacs" rel="nofollow">https:&#x2F;&#x2F;www.emacswiki.org&#x2F;emacs&#x2F;GuileEmacs</a>