@m33 @atoponce
I used to use mh-e inside of email as my mail user agent for years, back when I used MH at the shell for email. And gdb-mode and lots of other things.
The most bizarre was the editing mode I configured for UNIVAC 1100 assembly code; came in handy for the UNIVAC TCP/IP stack that I was an author of back in 1981 or so and we got FTP working on the mainframe..
emacs: one-stop shopping for all your computing needs.