ibus-mozc

paru -S mozc
  • install communication module with ibus
paru -S ibus-mozc
  • add to ibus
ibus-setup
  • "IBus Preferences" -> "Input method" -> "Add" -> "Japanese" -> "Mozc"
  • startup in hiragana mode, useful if no hardware key for Eisu etc.
  • edit ~/.config/mozc/ibus_config.textproto, change active_on_launch from False to True
...
}
active_on_launch: True