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 "=dev-util/pwntools-4.15.0" have been masked.
!!! One of the following masked packages is required to complete your request:
- dev-util/pwntools-4.15.0::gentoo (masked by: package.mask)
/Volumes/Disk 1/Repository/portage-git/profiles/package.mask:
# Sam James <sam@gentoo.org> (2026-05-05)
# dev-debug/pwndbg itself needs >=dev-util/unicorn-2.1.4, while
# pwndbg also depends on dev-util/pwntools which needs <dev-util/unicorn-2.1.4.
#
# Mask to avoid Portage wasting time trying to find a solution, when
# the only one available is to downgrade.


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