Global USE flags

Flag Description Packages
man 2
pulseaudio Enable support for volume control via PulseAudio 2

Local USE flags

app-editors

typora

Flag Description
tgreen Apply TGreen patch
wayland Enable Wayland support to fix Fcitx input method issues

dev-lang

lua

Flag Description
deprecated make deprecated data structures/routines available
readline

gui-apps

waybar

Flag Description
backlight Enable module that controls the current backlight level
evdev Enable libevdev support for evdev related features
experimental Enable experimental features, such as Bluetooth battery reporting
gps
jack
libinput Enable libinput support for libinput related features
logind Enable support for logind (bluetooth and idle inhibit)
mpd Enable support for the Music Player Daemon
mpris Enable support for mpris
network Enable libnl support for network related features
niri Enable support for Niri Wayland compositor
pipewire Enable support for pipewire
sndio Enable support for volume control via sndio
systemd
test
tray Enable support for tray
udev
upower
wifi Enable support for wifi/rfkill

media-sound

spotify

Flag Description
libnotify
local-playback
pax-kernel

net-im

tencent-qq

Flag Description
bwrap Use <pkg>sys-apps/bubblewrap</pkg> to prevent private information leakage
gnome Supporting screenshot when using GNOME
liteloader Add liteloader support
system-fdk-aac Use <pkg>media-libs/fdk-aac</pkg> instead of shipped libs.
system-libssh2 Use <pkg>net-libs/libssh2</pkg> instead of shipped libs.
system-openh264 Use <pkg>media-libs/openh264</pkg> instead of shipped libs.
system-vips Use <pkg>media-libs/vips</pkg> instead of shipped libs.
system-zlib Use <pkg>virtual/zlib</pkg> instead of shipped libs.