[ivansavz]

This is really nice!

Here is an attempt at fish port:

   function notifyme
     set MSG $argv[1] "Terminal is done"
     set TITLE $argv[2] "Done!"
     osascript -e "display notification \"$MSG[1]\" with title \"$TITLE[1]\""
   end

disclaimer: this is first fish function I ever write so might not be the best way to do default values; I'm using hack from https://unix.stackexchange.com/a/88682