DISCLAIMER: This is my second script, I dont know anything about scripting

This might not work on your system or have horrendous programming flaws

setBrightnessAllMonitors

Description:

This script allows you to change the brightness all of your screens simultaneously.
There are probably better ways and programs out there of doing this,
but I already wrote a script for vibrancy, so here we are.

Use case example: I launch the script with desired values via keybinding.

How it works

It provides a nice way of setting the xrandr gamma value of all our outputs

Usage

Syntax:
setBrightnessAllMonitors.sh yourDesiredValueHere

Example:
setBrightnessAllMonitors.sh 0.8