xrsh-buildroot/buildroot-v86/board/v86/rootfs_overlay/root/bin/watchfs

#!/bin/sh

infinite inotifyd echo /mnt/root  | awk '

  # listen for writes to rootdir and send them to DOM 
  /^[ne] \/mnt\/root index\.html/ { system("cat "$2"/"$3" | grep -vE \"^#!\" > /dev/browser/html") }
  /^[ne] \/mnt\/root index\.js/   { system("cat "$2"/"$3" | grep -vE \"^#!\" > /dev/browser/js") }

'