Install this version:
emerge -a =app-crypt/certbot-standalone-nfq-0.1.3-r1
If this version is masked, you can unmask it using the autounmask tool or standard emerge options:
autounmask =app-crypt/certbot-standalone-nfq-0.1.3-r1
Or alternatively:
emerge --autounmask-write -a =app-crypt/certbot-standalone-nfq-0.1.3-r1
# Copyright 1999-2021 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2
EAPI=8
DISTUTILS_USE_PEP517=setuptools
PYPI_NO_NORMALIZE=1
PYTHON_COMPAT=( python3_{12..13} )
inherit distutils-r1 linux-info pypi
DESCRIPTION="Authenticator plugin using NFQUEUE for Certbot (Let's Encrypt Client)"
HOMEPAGE="https://github.com/alexzorin/certbot-standalone-nfq https://pypi.org/project/certbot-standalone-nfq/"
LICENSE="GPL-2"
SLOT="0"
KEYWORDS="~amd64 ~x86"
RDEPEND="
>=dev-python/setuptools-scm-7.0.5[${PYTHON_USEDEP}]
>=app-crypt/certbot-1.25.0[${PYTHON_USEDEP}]
net-analyzer/scapy[${PYTHON_USEDEP}]
net-analyzer/fnfqueue[${PYTHON_USEDEP}]
dev-python/pyroute2[${PYTHON_USEDEP}]
"
CONFIG_CHECK="~NFT_QUEUE ~NETFILTER_NETLINK_QUEUE ~NF_TABLES_INET"
>=dev-python/setuptools-scm-7.0.5[] >=app-crypt/certbot-1.25.0[] net-analyzer/scapy[] net-analyzer/fnfqueue[] dev-python/pyroute2[]