How to install KDE Plasma in Arch Linux

Arch Linux doesn't come with a desktop environment, so you will need to install one on your own.

1. Install packages

Run this code, and choose all the defaults.

sudo pacman -S --needed xorg sddm
sudo pacman -S --needed plasma kde-applications

If it fails to install, run this code.

sudo pacman -Sy xorg sddm
sudo pacman -Sy plasma kde-applications

Run this code.

sudo systemctl enable sddm
sudo systemctl enable NetworkManager

Open this file on nano.

sudo nano /usr/lib/sddm/sddm.conf.d/default.conf

Add the text

[Theme]
# current theme name
Current=breeze

Run this code.

sudo systemctl reboot