Only install yay if its not there

install/1-yay.sh

@@ -1,6 +1,9 @@
 sudo pacman -S --needed --noconfirm base-devel
+
+if ! command -v yay &>/dev/null; then
   git clone https://aur.archlinux.org/yay-bin.git
   cd yay-bin
   makepkg -si --noconfirm
   cd ~
   rm -rf yay-bin
+fi