fcitx : Fcitx (Flexible Context-aware Input Tool with eXtension) input method framework ( https://fcitx-im.org/ https://github.com/fcitx/fcitx5 )
fcitx-anthy : Japanese Anthy input methods for Fcitx5 ( https://fcitx-im.org/ https://github.com/fcitx/fcitx5-anthy )
fcitx-configtool : GUI configuration tool for Fcitx ( https://fcitx-im.org/ https://github.com/fcitx/fcitx5-configtool )
fcitx-qt : Qt library and IM module for fcitx5 ( https://fcitx-im.org/ https://github.com/fcitx/fcitx5-qt )
Add an ebuild in portage :
The ebuild is now in the portage tree.
You can also use layman : emerge layman then layman -a lanodanOverlay
For Paludis use this rsync : rsync://gentoo.zugaina.org/lanodanOverlay-portage
If you have a problem : ycarus(-at-)zugaina.org