custom/pacman tooltip

[Manix80]

I'd just like to display the list of pacman and AUR packages in tooltips, but I'm not sure how to go about it.
I've read the wiki and tried various ways of doing it but it doesn't work.
https://github.com/Alexays/Waybar/wiki/Module:-Custom
I searched in "issues" and found this script:

#!/bin/sh

output="$(checkupdates)"
number="$(echo "$output" | wc -l)"
text="$number "

if (( $number > 20 ))
then
    tooltip="$(echo "$output" | head -n 20 | sed -z 's/\n/\\n/g')"
    tooltip+='...'
else
    tooltip="$(echo "$output" | sed -z 's/\n/\\n/g')"
    tooltip=${tooltip::-2}
fi

echo "{\"text\":\""$text"\", \"tooltip\":\""$tooltip"\"}"
exit 0

possibly a script with AUR?

config here for the moment:

  "custom/pacman": {
    "format": "{}",
    "interval": 60,
    "exec": "$HOME/.local/bin/updates",
    "on-click": "kitty --title float_kitty -e zsh -c install_updates",
    "exec-if": "exit 0",
    "signal": 8,
    "tooltip": false
  },

thank you for reading and for potentially helping me.