Well, that's ironic. I actually do spend all day, every work day, in a piece of software which unifies most of the tools I need - editor, file manager, make console, find/grep frontend, etc. It's as stable as can be, since I'm the only person who maintains or even uses it, and it's as simple as can be, since I don't bother to write features in unless I really want them.

I've always supposed that emacs was for people with inscrutably complex text-editing needs, far beyond the bounds of my "nano is plenty" imagination, but if my cozy little coding environment is the kind of thing people are doing with emacs, I can understand why they would like that.