Install this version:
emerge -a =acct-group/matrix-webhook-0
If this version is masked, you can unmask it using the autounmask tool or standard emerge options:
autounmask =acct-group/matrix-webhook-0
Or alternatively:
emerge --autounmask-write -a =acct-group/matrix-webhook-0
# Copyright 1999-2022 Gentoo Authors # Distributed under the terms of the GNU General Public License v2 EAPI=8 inherit acct-group KEYWORDS="~amd64 ~x86" ACCT_GROUP_ID=-1