install_xrsh(){

  setup_binaries(){
    for bin in /mnt/prompt /mnt/alert /mnt/confirm /mnt/hook /mnt/js*; do 
      chmod +x $bin
      ln -s $bin /bin/.
    done
  }

  setup_browser_dev(){
    mkdir -p /mnt/dev/browser
    touch /mnt/dev/browser/js
    touch /mnt/dev/browser/html
    touch /mnt/dev/browser/console
    ln -s /mnt/dev/browser /dev/browser
    test -f /etc/profile && rm /etc/profile
    ln -s /mnt/profile /etc/profile
  }

  setup_hook_dirs(){ # see /mnt/hook for usage
    mkdir -p ~/hook.d/alert  
    mkdir -p ~/hook.d/confirm  
    mkdir -p ~/hook.d/prompt  
    echo -e "#!/bin/sh\necho yo"          > ~/hook.d/alert/yo
    echo -e "#!/bin/js\nalert('yo')"      > ~/hook.d/alert/yo.js
    echo -e "#!/usr/bin/lua\nalert('yo')" > ~/hook.d/alert/yo.lua
  }

  setup_binaries
  setup_browser_dev
  setup_hook_dirs
}

test -d /dev/browser || install_xrsh

test -f /mnt/V86 && {
  mount -a
  udhcpc 1>>/var/log/network.log 2>>/var/log/network.log & 
  echo 0 > /proc/sys/kernel/printk
}

## forward not-found commands to javascript (via jsh)
command_not_found_handle(){
  echo "$1 not found"
  alert "did you mean $1(...) (javascript?)"
  alert "TIP: run 'jsh $1 hello' to run $1('hello')"
  alert "     or simply 'jsh' for a js console"
}

# source javascript functions
#js "$(cat /mnt/profile.js)"

resize
#clear 
cat /mnt/motd
export PATH=$PATH:/mnt
export PS1="\nxrsh # \033[0m"
export BROWSER=0 # running inside v86 (wasm) will set this to 1