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

Calculating dependencies ... done!
Dependency resolution took 0.83 s (backtrack: 0/20).


!!! All ebuilds that could satisfy "=media-libs/zmusic-1.3.0" have been masked.
!!! One of the following masked packages is required to complete your request:
- media-libs/zmusic-1.3.0::gentoo (masked by: package.mask)
/Volumes/Disk 1/Repository/portage-git/profiles/package.mask:
# James Le Cuirot <chewi@gentoo.org> (2026-09-28)
# Previously split out of games-engines/uzdoom as an external dependency but is
# now bundled. Not used by anything else. Removal on 2026-10-28. Bug #957494.


For more information, see the MASKED PACKAGES section in the emerge
man page or refer to the Gentoo Handbook.