I got fed up with the standard offerings back in '07 or so and hammered out my idea of a code editor that's perfect for me over a long weekend. It mmaps files

I got fed up with the standard offerings back in '07 or so and hammered out my idea of a code editor that's perfect for me over a long weekend. It mmaps files initially for instant response, it has a small sensible command set that I can remember completely, it depends on nothing more than the standard C library and a terminal emulator, and it's not many more lines of code than some Emacs configuration files that I've seen. I still use it for everything.