-- Source editor that lets me edit the app from within. However, it's a sharp
-- tool. I find it convenient, but I also often end up in a bad state that
-- requires dropping down to external tools (editor, file manager) to fix.
--
-- Downstream forks provide a better, "freewheeling" experience for editing
-- apps live. The source editor provides a half-baked experience for editing
-- some of the primitives used by true freewheeling apps.