>>> Emerging : portage://media-sound/csound-9999:run?{[]}

These are the packages that would be merged, in order:

Calculating dependencies... done!

 └─step  1─┤ keyword portage://media-sound/csound-9999 (**)
             │ useflag portage://media-sound/csound-9999 (python_single_target_python3_13)

 └─step  2─┤ download  portage://app-eselect/eselect-mpg123-0.1-r1
             │ download  portage://dev-build/b2-5.5.3
             │           └─ file ─┤ 1.17 Mb  	 b2-5.5.3.tar.gz
             │ download  portage://dev-libs/boost-1.91.0-r2
             │           └─ file ─┤ 195.10 Mb  	 boost_1_91_0.tar.bz2
             │ download  portage://media-libs/alsa-lib-1.2.16.1
             │           └─ file ─┤ 1.08 Mb  	 alsa-lib-1.2.16.1.tar.bz2
             │ download  portage://media-libs/alsa-topology-conf-1.2.5.1-r1
             │           └─ file ─┤ 11.42 Kb  	 alsa-topology-conf-1.2.5.1.tar.bz2
             │ download  portage://media-libs/alsa-ucm-conf-1.2.16.1
             │           └─ file ─┤ 82.32 Kb  	 alsa-ucm-conf-1.2.16.1.tar.bz2
             │ download  portage://media-libs/flac-1.5.0
             │           └─ file ─┤ 1.03 Mb  	 flac-1.5.0.tar.xz
             │ download  portage://media-libs/libogg-1.3.6
             │           └─ file ─┤ 429.64 Kb  	 libogg-1.3.6.tar.xz
             │ download  portage://media-libs/libsamplerate-0.2.2
             │           └─ file ─┤ 3.17 Mb  	 libsamplerate-0.2.2.tar.xz
             │ download  portage://media-libs/libsndfile-1.2.2-r2
             │           └─ file ─┤ 713.63 Kb  	 libsndfile-1.2.2.tar.xz
             │ download  portage://media-libs/libvorbis-1.3.7-r2
             │           └─ file ─┤ 1.15 Mb  	 libvorbis-1.3.7.tar.xz
             │ download  portage://media-libs/opus-1.6.1
             │           └─ file ─┤ 9.99 Mb  	 opus-1.6.1.tar.gz
             │ download  portage://media-sound/csound-9999
             │           └─ live ─┤ live   	 git repository
             │ download  portage://media-sound/lame-3.100-r3
             │           └─ file ─┤ 1.45 Mb  	 lame-3.100.tar.gz
             │ download  portage://media-sound/mpg123-base-1.33.7
             │           └─ file ─┤ 1.07 Mb  	 mpg123-1.33.7.tar.bz2

Total: 17 actions (1 keyword, 1 useflag, 15 downloads), grouped into 2 steps.
       216.42 Mb to be downloaded.


>>> Assumptions taken during proving & planning:

  Keyword acceptance (1 package):
  Add to /etc/portage/package.accept_keywords:
    media-sound/csound **

  USE flag change (1 package):
  Add to /etc/portage/package.use:
    media-sound/csound python_single_target_python3_13