Check the internet

Run:

wifi-menu

Xorg

Update the system and install X11:

pacman -Sy
pacman -S xorg xorg-server

Install nvidia

Run the following commands:

pacman -S nvidia-dkms

Install Intel Video Driver

If you are usingg a device with Intel video, run:

pacman -S xf86-video-intel

Install KDE

Run the following commands:

sudo pacman -S plasma-desktop sddm konsole
sudo systemctl enable sddm
sudo systemctl start sddm

Optional programs:

sudo pacman -S user-manager breeze-gtk kde-gtk-config bluedevil powerdevil plasma-nm plasma-pa

After login, go to settings Input Devices > Keyboards and make sure everything is correcly defined. Make sure American Internacional variant is selected (not US) on Layouts tabs.

Setup Network Manager

Run:

sudo systemctl enable NetworkManager
sudo systemctl start NetworkManager

KDE Customization

Install Materia KDE or Materia Manjaro style and Papirus icon theme on KDE settings.

Install Git

Run the following command:

pacman -S git openssh

Then follow the instructions on this link to setup your ssh key.

After that, add AddKeysToAgent yes to the file ~/.ssh/config to make git stop asking password in every git push.

Install yay

Uncomment multilib on /etc/pacman.conf:

sudo nano /etc/pacman.conf

Change:

[multilib]
Include = /etc/pacman.d/mirrorlist

Run the follow command to get it:

pacman -Sy
git clone https://aur.archlinux.org/yay.git
cd yay
makepkg -si

Install Android Studio

Run the follow command to get it:

yay -S android-studio android-emulator

Install other programs / libs / things

Install the following common programs:

# Common
sudo pacman -S firefox

# Dev
sudo pacman -S wget zsh ark unrar okular openssh openssl python python-pip

# Dev - Clojure
sudo pacman -S clojure
yay -S leinigen

# Deb - Flutter
sudo yay -S flutter go

# Codecs
sudo pacman -S a52dec faac faad2 flac jasper lame libdca libdv libmad libmpeg2 libtheora libvorbis libxv wavpack x264 xvidcore gstreamer0.10-plugins vlc

# Other programs
yay -S discord ttf-fira-code

After install, reboot.

Configure KDE

Go to Touchpad settings and configure it like you want (if needed).