music: curl + sox
video: mplayer
sound: pulseaudio (apparently bluetooth support was dropped from alsa)
email: mu, mutt, isync, msmtp, webdump, ldapsearch and a lot of shell glue around it!
image: lel, farbfeld, xscreenshot
multiplexer: dvtm
editor: vis (occasionally mg, but it lack utf-8 support which is bad for french)
backup: dedup + rclone
password: safe
packages: pm (on top of the default of the distro)
shell: mksh
misc: pick (love this one!)