paccache -rk1
yay -Scc
https://forum.endeavouros.com/t/removing-old-packages-from-yay-cache-in-home-directory/1428/5
yay -Sua - upgrade all packages in aur
sudo pacman -Rsu $(pacman -Qdtq) - remove orphan packages
yay -Sc - clean up build / cache files (be cautious while choosing options)
Keyring, Screenkey
pacman -Sy archlinux-keyring
screenkey - ctrl right and left to disable screen key
asd.service
Mirror List
sudo nano /etc/pacman.d/mirrorlist
https://archlinux.org/mirrorlist/
Messed up by removing important package?
check the files:
cat /var/log/pacman.log | grep "removed"
or download manually the file, and install through pacman -U <file>