auto_clean_pacman_cache.txt

# Option 1 (manually):

sudo pacman -Scc

# Option 2 (automatically) (see https://ostechnix.com/recommended-way-clean-package-cache-arch-linux/):

## 1. Create a file /etc/pacman.d/hooks/clean_package_cache.hook:

sudo mkdir /etc/pacman.d/hooks
sudo nano /etc/pacman.d/hooks/clean_package_cache.hook

## 2. Add the content:

[Trigger]
Operation = Upgrade
Operation = Install
Operation = Remove
Type = Package
Target = *
[Action]
Description = Cleaning pacman cache...
When = PostTransaction
Exec = /usr/bin/paccache -r