# grep -r -E "ruby|RUBY" /etc/portage; echo "world: "; cat /var/lib/portage/world
/etc/portage/package.accept_keywords:=dev-ruby/set-1.0.3 ~amd64
/etc/portage/package.use/zz-autounmask:# required by dev-lang/ruby-3.1.6-r1::gentoo
/etc/portage/package.use/zz-autounmask:>=dev-ruby/minitest-5.25.1 ruby_targets_ruby31
/etc/portage/package.use/zz-autounmask:# required by dev-lang/ruby-3.1.6-r1::gentoo
/etc/portage/package.use/zz-autounmask:>=dev-ruby/rake-13.2.1 ruby_targets_ruby31
/etc/portage/package.use/zz-autounmask:# required by dev-lang/ruby-3.1.6-r1::gentoo
/etc/portage/package.use/zz-autounmask:>=dev-ruby/rexml-3.3.7 ruby_targets_ruby31
/etc/portage/package.use/zz-autounmask:# required by dev-ruby/rdoc-6.6.3.1-r1::gentoo[ruby_targets_ruby31]
/etc/portage/package.use/zz-autounmask:# required by dev-lang/ruby-3.2.4-r1::gentoo
/etc/portage/package.use/zz-autounmask:# required by dev-ruby/debug-1.9.2::gentoo[ruby_targets_ruby32]
/etc/portage/package.use/zz-autounmask:>=dev-ruby/psych-5.1.2 ruby_targets_ruby31
/etc/portage/package.use/zz-autounmask:# required by dev-ruby/irb-1.13.2::gentoo[ruby_targets_ruby31]
/etc/portage/package.use/zz-autounmask:# required by dev-ruby/debug-1.9.2::gentoo[ruby_targets_ruby32]
/etc/portage/package.use/zz-autounmask:# required by dev-lang/ruby-3.2.4-r1::gentoo
/etc/portage/package.use/zz-autounmask:# required by dev-ruby/io-console-0.7.2::gentoo[ruby_targets_ruby32]
/etc/portage/package.use/zz-autounmask:>=dev-ruby/reline-0.5.10 ruby_targets_ruby31
/etc/portage/package.use/zz-autounmask:# required by dev-ruby/rexml-3.3.7::gentoo[ruby_targets_ruby31]
/etc/portage/package.use/zz-autounmask:# required by dev-ruby/rss-0.3.0::gentoo[ruby_targets_ruby31]
/etc/portage/package.use/zz-autounmask:# required by dev-lang/ruby-3.2.4-r1::gentoo
/etc/portage/package.use/zz-autounmask:# required by dev-ruby/debug-1.9.2::gentoo[ruby_targets_ruby32]
/etc/portage/package.use/zz-autounmask:>=dev-ruby/strscan-3.1.0 ruby_targets_ruby31
/etc/portage/package.use/zz-autounmask:# required by dev-ruby/psych-5.1.2::gentoo[ruby_targets_ruby31]
/etc/portage/package.use/zz-autounmask:# required by dev-ruby/rdoc-6.6.3.1-r1::gentoo[ruby_targets_ruby32]
/etc/portage/package.use/zz-autounmask:# required by dev-lang/ruby-3.2.4-r1::gentoo
/etc/portage/package.use/zz-autounmask:# required by dev-ruby/net-ftp-0.3.7::gentoo[ruby_targets_ruby32]
/etc/portage/package.use/zz-autounmask:>=dev-ruby/stringio-3.1.1 ruby_targets_ruby31
/etc/portage/package.use/zz-autounmask:# required by dev-lang/ruby-3.1.6-r1::gentoo
/etc/portage/package.use/zz-autounmask:# required by dev-ruby/logger-1.6.1::gentoo[ruby_targets_ruby31]
/etc/portage/package.use/zz-autounmask:>=dev-ruby/rbs-3.5.3 ruby_targets_ruby31
/etc/portage/package.use/zz-autounmask:# required by dev-lang/ruby-3.1.6-r1::gentoo
/etc/portage/package.use/zz-autounmask:# required by dev-ruby/logger-1.6.1::gentoo[ruby_targets_ruby31]
/etc/portage/package.use/zz-autounmask:# required by dev-ruby/rbs-3.5.3::gentoo[ruby_targets_ruby32]
/etc/portage/package.use/zz-autounmask:# required by dev-ruby/typeprof-0.21.11::gentoo[ruby_targets_ruby32]
/etc/portage/package.use/zz-autounmask:# required by dev-lang/ruby-3.2.4-r1::gentoo
/etc/portage/package.use/zz-autounmask:# required by dev-ruby/net-ftp-0.3.7::gentoo[ruby_targets_ruby32]
/etc/portage/package.use/zz-autounmask:>=dev-ruby/rss-0.3.1 ruby_targets_ruby31
/etc/portage/package.use/zz-autounmask:# required by dev-lang/ruby-3.1.6-r1::gentoo
/etc/portage/package.use/zz-autounmask:# required by dev-ruby/logger-1.6.1::gentoo[ruby_targets_ruby31]
/etc/portage/package.use/zz-autounmask:# required by dev-ruby/rbs-3.5.3::gentoo[ruby_targets_ruby32]
/etc/portage/package.use/zz-autounmask:# required by dev-ruby/typeprof-0.21.11::gentoo[ruby_targets_ruby32]
/etc/portage/package.use/zz-autounmask:# required by dev-lang/ruby-3.2.4-r1::gentoo
/etc/portage/package.use/zz-autounmask:# required by dev-ruby/net-ftp-0.3.7::gentoo[ruby_targets_ruby32]
/etc/portage/package.use/zz-autounmask:>=dev-ruby/test-unit-3.6.2 ruby_targets_ruby31
/etc/portage/package.use/zz-autounmask:# required by dev-ruby/rbs-3.5.3::gentoo[ruby_targets_ruby31]
/etc/portage/package.use/zz-autounmask:# required by dev-ruby/typeprof-0.21.11::gentoo[ruby_targets_ruby32]
/etc/portage/package.use/zz-autounmask:# required by dev-lang/ruby-3.2.4-r1::gentoo
/etc/portage/package.use/zz-autounmask:# required by dev-ruby/net-ftp-0.3.7::gentoo[ruby_targets_ruby32]
/etc/portage/package.use/zz-autounmask:>=dev-ruby/logger-1.6.1 ruby_targets_ruby31
/etc/portage/make.conf:RUBY_TARGETS="ruby32"
world: 
acct-user/ftp
app-arch/p7zip
app-arch/unrar
app-editors/nano
app-emulation/virtualbox
app-emulation/virtualbox-modules
app-eselect/eselect-php
app-eselect/eselect-python
app-misc/mc
app-office/libreoffice
app-portage/cpuid2cpuflags
app-portage/eix
app-portage/genlop
app-portage/gentoolkit
app-portage/ufed
app-text/a2ps
app-text/wgetpaste
dev-db/mariadb
dev-debug/gdb
dev-libs/bemenu
dev-libs/libxml2
dev-libs/openssl
dev-libs/weston
dev-perl/Font-TTF
dev-php/PEAR-HTML_Table
dev-php/PEAR-HTML_Table_Matrix
dev-php/pear
dev-qt/qtgui
dev-util/debugedit
dev-util/sasm
dev-vcs/mercurial
games-board/gnuchess
games-board/polyglot
games-board/stockfish
games-board/xboard
gnome-base/librsvg
gui-apps/mako
gui-apps/swaybg
gui-apps/wcm
gui-apps/wf-shell
gui-apps/wl-clipboard
gui-apps/wofi
gui-libs/display-manager-init
gui-libs/wayfire-plugins-extra
gui-libs/wlroots
gui-wm/hyprland
gui-wm/wayfire
kde-apps/kate
kde-apps/kmix
kde-apps/konsole
kde-apps/ksudoku
kde-apps/okular
lxde-base/lxde-meta
lxde-base/lxdm
mail-client/thunderbird-bin
media-fonts/font-bh-ttf
media-fonts/fontawesome
media-gfx/gimp
media-gfx/gthumb
media-libs/gd
media-libs/libass
media-libs/libva-intel-media-driver
media-libs/mesa
media-plugins/gst-plugins-meta
media-sound/alsa-utils
media-sound/alsamixergui
media-sound/audacious
media-sound/clementine
media-sound/grip
media-sound/lame
media-sound/pavucontrol
media-sound/pulseeffects
media-sound/pulsemixer
media-tv/linuxtv-dvb-apps
media-tv/tvheadend
media-tv/w_scan
media-video/ffmpeg
media-video/kaffeine
media-video/mplayer
media-video/vlc
net-fs/cifs-utils
net-fs/curlftpfs
net-ftp/ftp
net-im/skypeforlinux
net-libs/webkit-gtk
net-misc/ntp
net-print/brother-dcpl2500d-bin
net-print/brother-genml1-bin
net-print/cups-filters
net-wireless/iw
sys-apps/dmidecode
sys-apps/install-xattr
sys-apps/mlocate
sys-apps/nvme-cli
sys-apps/pciutils
sys-apps/pcmciautils
sys-apps/portage
sys-apps/smartmontools
sys-apps/usbutils
sys-auth/polkit
sys-devel/gcc
sys-devel/multilib-gcc-wrapper
sys-firmware/intel-microcode
sys-fs/dosfstools
sys-fs/ntfs3g
sys-fs/simple-mtpfs
sys-fs/xfsprogs
sys-kernel/gentoo-sources
sys-kernel/gentoo-sources:6.6.8
sys-kernel/installkernel
sys-kernel/linux-firmware
sys-libs/libseccomp
www-client/firefox-bin
www-client/opera
www-servers/apache
x11-apps/mesa-progs
x11-apps/setxkbmap
x11-apps/xlsclients
x11-base/xorg-drivers
x11-drivers/xf86-input-evdev
x11-drivers/xf86-video-ati
x11-drivers/xf86-video-fbdev
x11-drivers/xf86-video-vesa
x11-libs/gtk+
x11-libs/libfm-extra
x11-misc/openbox-menu
x11-misc/qt5ct
x11-terms/kitty
x11-wm/awesome
x11-wm/openbox