Calculating dependencies... done!
[ebuild     U  ] x11-libs/libnotify-0.7.9-r1::gentoo [0.7.9::gentoo] USE="introspection -gtk-doc -test" ABI_X86="(64) -32 (-x32)" 0 KiB
[ebuild   R    ] media-video/pipewire-0.3.30:0/0.3::gentoo  USE="aac bluetooth gstreamer pipewire-alsa* systemd v4l -aptx -doc -extra -jack-client -jack-sdk -ldac -test" ABI_X86="(64) -32 (-x32)" 0 KiB
[ebuild   R    ] media-sound/pulseaudio-13.0-r1::gentoo  USE="X alsa alsa-plugin asyncns bluetooth caps dbus gdbm glib gtk ipv6 orc qt5 ssl systemd tcpd udev webrtc-aec -doc (-elogind) -equalizer -gconf -jack -libsamplerate -lirc -native-headset -ofono-headset (-oss) -realtime* (-selinux) -sox (-system-wide) -test -zeroconf" ABI_X86="32 (64) (-x32)" 0 KiB
[ebuild     U  ] media-sound/mpg123-1.28.0-r1::gentoo [1.28.0::gentoo] USE="alsa ipv6 pulseaudio sdl (-coreaudio) -int-quality -jack -nas -oss -portaudio" ABI_X86="32 (64) (-x32)" CPU_FLAGS_X86="sse (-3dnow) (-3dnowext) (-mmx)" 0 KiB
[blocks B      ] media-plugins/alsa-plugins ("media-plugins/alsa-plugins" is blocking media-video/pipewire-0.3.30)

Total: 4 packages (2 upgrades, 2 reinstalls), Size of downloads: 0 KiB
Conflict: 1 block (1 unsatisfied)

 * Error: The above package list contains packages which cannot be
 * installed at the same time on the same system.

  (media-plugins/alsa-plugins-1.2.2:0/0::gentoo, installed) pulled in by
    >=media-plugins/alsa-plugins-1.0.27-r1[pulseaudio,abi_x86_32(-)?,abi_x86_64(-)?,abi_x86_x32(-)?,abi_mips_n32(-)?,abi_mips_n64(-)?,abi_mips_o32(-)?,abi_s390_32(-)?,abi_s390_64(-)?] (>=media-plugins/alsa-plugins-1.0.27-r1[pulseaudio,abi_x86_32(-),abi_x86_64(-)]) required by (media-sound/pulseaudio-13.0-r1:0/0::gentoo, ebuild scheduled for merge) USE="X alsa alsa-plugin asyncns bluetooth caps dbus gdbm glib gtk ipv6 orc qt5 ssl systemd tcpd udev webrtc-aec -doc (-elogind) -equalizer -gconf -jack -libsamplerate -lirc -native-headset -ofono-headset (-oss) -realtime (-selinux) -sox (-system-wide) -test -zeroconf" ABI_X86="32 (64) (-x32)"

  (media-video/pipewire-0.3.30:0/0.3::gentoo, ebuild scheduled for merge) pulled in by
    media-video/pipewire:0/0.3 required by (www-client/firefox-89.0.2:0/89::gentoo, installed) USE="clang dbus gmp-autoupdate lto openh264 pgo pulseaudio screencast system-av1 system-harfbuzz system-icu system-jpeg system-libevent system-libvpx system-webp wayland wifi -debug -eme-free -geckodriver -hardened -hwaccel -jack (-selinux) -sndio" ABI_X86="(64)" L10N="-ach -af -an -ar -ast -az -be -bg -bn -br -bs -ca -ca-valencia -cak -cs -cy -da -de -dsb -el -en-CA -en-GB -eo -es-AR -es-CL -es-ES -es-MX -et -eu -fa -ff -fi -fr -fy -ga -gd -gl -gn -gu -he -hi -hr -hsb -hu -hy -ia -id -is -it -ja -ka -kab -kk -km -kn -ko -lij -lt -lv -mk -mr -ms -my -nb -ne -nl -nn -oc -pa -pl -pt-BR -pt-PT -rm -ro -ru -si -sk -sl -son -sq -sr -sv -szl -ta -te -th -tl -tr -trs -uk -ur -uz -vi -xh -zh-CN -zh-TW"
    >=media-video/pipewire-0.3:0/0.3= required by (sys-apps/xdg-desktop-portal-1.8.1:0/0::gentoo, installed) USE="screencast -geolocation" ABI_X86="(64)"
    media-video/pipewire:0/0.3= required by (media-libs/tg_owt-0_pre20210626:0/20210626::gentoo, installed) USE="X alsa pulseaudio screencast" ABI_X86="(64)"
    >=media-video/pipewire-0.3.0:0/0.3 required by (gnome-base/gnome-shell-40.2:0/0::gentoo, installed) USE="bluetooth browser-extension ibus networkmanager systemd (-elogind) -gtk-doc -telepathy -test" ABI_X86="(64)" PYTHON_SINGLE_TARGET="python3_8 -python3_9"
    media-video/pipewire:= required by (media-libs/tg_owt-0_pre20210626:0/20210626::gentoo, installed) USE="X alsa pulseaudio screencast" ABI_X86="(64)"
    >=media-video/pipewire-0.3:= required by (sys-apps/xdg-desktop-portal-1.8.1:0/0::gentoo, installed) USE="screencast -geolocation" ABI_X86="(64)"
    >=media-video/pipewire-0.3.24[gstreamer] required by (media-sound/pulseeffects-9999:0/0::gentoo, installed) USE="bs2b calf rubberband" ABI_X86="(64)"
    >=media-video/pipewire-0.3.21:0/0.3 required by (x11-wm/mutter-40.2.1:0/8::gentoo, installed) USE="introspection screencast systemd udev wayland (-elogind) -sysprof -test" ABI_X86="(64)" INPUT_DEVICES="-wacom" VIDEO_CARDS="-nvidia"