text/html; w3m -I %{charset} -T text/html %s; copiousoutput;
text/* ; nvim %s ; edit=nvim %s ; compose=nvim %s ; needsterminal
image/*; imv %s ; copiousoutput
application/pdf; zathura %s ;
application/vnd.openxmlformats-officedocument.wordprocessingml.document; libreoffice %s ;
application/pgp-encrypted; gpg -d '%s'; copiousoutput;