MasterRC is a simple bash script that mainly updates pretty much everything on your system with one command.
It updates APT, pacman, Flatpak, Snap and Discord among other things.
Also it updates itself and it has a lot of other commands. Find them here.
You can use
curl -fsSL https://masterrc.master3307.org/ | bashto install it with one command.
Please review this code before you install it. Don't blame me for any damage! It should be 100% safe, but you never know.
Visit the Documentation for more information on how to install, use and customize MasterRC.