Enable Japanese locale on Steam Deck

japanese_locale_enabler.sh

#!/bin/bash

# This script is enabling (uncommenting) the Japanese locale and regenerates them

sudo steamos-readonly disable
sudo pacman-key --init
sudo pacman-key --populate archlinux
sudo pacman -S glibc
sudo sed -i "s%#ja_JP.UTF-8 UTF-8%ja_JP.UTF-8 UTF-8%" /etc/locale.gen
sudo locale-gen
sudo steamos-readonly enable
echo "Done! Be sure to put `LANG=ja_JP.UTF-8 %command%` in the game's startup options on Steam to enable the locale."

FYI I just finished running this on Konsole in my Steam Deck and in the end it echoed "Done! Be sure to put in the game's startup options on Steam to enable the locale." so the ` you have before and after the launch option might be causing it not to print.

Besides that the script ran fine and the locale is working in my game so very much thank you!

I will definitely try this on the Steam Deck when I get one this fall.