Commands Used in this Video

Download Google Chrome from the AUR

https://aur.archlinux.org/packages/google-chrome/
(click "Download Snapshot")

Extract the downloaded archive

tar -xvf google-chrome.tar.gz

Generate the package

cd into the directory, then run:
makepkg -s

Install the generated package

sudo pacman -U google-chrome-<version>.tar.xz

Install git

sudo pacman -S git

Clone yay

git clone https://aur.archlinux.org/yay.git

Build yay

makepkg -s

Install the generated package

sudo pacman -U yay-<version>.tar.xz

Use yay to search for or install a package

yay <package or search term>