Made setup script machine agnostic

setup.sh

@@ -1,5 +1,9 @@
 #!/usr/bin/env bash
 
+set -e
+
+DOTFILES_DIR="$(cd -- "$(dirname -- "${BASH_SOURCE[0]}")" && pwd)"
+
 if ! command -v paru &>/dev/null; then
   echo "Installing paru"
   sudo pacman -S base-devel git --needed --noconfirm
@@ -14,7 +18,7 @@ fi
 
 echo "Installing packages"
 sudo -v
-paru -S --noconfirm --needed - <$HOME/.dotfiles/packages.txt
+paru -S --noconfirm --needed - <$DOTFILES_DIR/packages.txt
 
 echo "Changing default shell"
 sudo chsh -s /bin/zsh $USER
@@ -27,5 +31,5 @@ sudo cp /usr/lib/systemd/user/arrpc.service /etc/systemd/system/arrpc.service
 sudo systemctl enable arrpc --now
 
 echo "Applying stow"
-cd $HOME/.dotfiles
+cd $DOTFILES_DIR
 stow fastfetch fuzzel ghostty godot hyfetch mangohud niri nvim oh-my-posh waybar wofi zsh