TTY. This avoids troublesome issues like pinentry clobbering [[Mutt]]
if they are both using ncurses.
+I didn't like any of the pinentry programs available on my system, so
+I wrote my own: [[pinentry.py]]. To use my script, save it somewhere
+on your system and add a line like the following to your
+`~/.gnupg/gpg-agent.conf`.
+
+ pinentry-program /path/to/pinentry.py
+
When you are done with the agent, kill it with
$ killall gpg-agent