I wrote this potato-make definition (was simplified): #:SRC_BEGIN sheme-mode #!/usr/bin/env sh exec guile -s "$0" "$@" !# (use-modules (ice-9 futures)  (potato make)) (initialize) (: "watch" '()    (~ (do ((i 1 (1+ i)))       ((> i 6))     (future (system      "emacs"))     ;;(let ((emacs_pid (getpid)))      ;; (kill emacs_pid SIGTERM))))) (execute) #:SRC_END expecting to capture emacs's pid and kill it, but the issue is that using `getpid` gets me the PID of potato-make and `getppid` of the shell -> How can i capture just the emacs's pid? FWIW the projected end-goal is 3600 loop that checks if the `my-theme.el` file has been changed to re-launch emacs with the theme loaded used for theme development.