dev-libs/libpthread-stubs-0.5 missing ~amd64 keyword
Currently, brave-bin-1.63.165 in your overlay depends upon dev-libs/libpthread-stubs-0.5, but this dependency lacks the required ~amd64 keyword in the gentoo tree. Currently, my brave-bin-1.63.165 installation is using the now unavailable-in-the-tree dev-libs/libpthread-stubs-0.4-r1