Install this version:
emerge -a =sec-keys/openpgp-keys-stellarium-20221229
If this version is masked, you can unmask it using the autounmask tool or standard emerge options:
autounmask =sec-keys/openpgp-keys-stellarium-20221229
Or alternatively:
emerge --autounmask-write -a =sec-keys/openpgp-keys-stellarium-20221229
# Copyright 2023 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2
EAPI=8
DESCRIPTION="OpenPGP keys used to sign Stellarium releases"
HOMEPAGE="https://stellarium.org/ https://github.com/Stellarium/stellarium"
LICENSE="public-domain"
SLOT="0"
KEYWORDS="amd64 ppc ppc64 ~riscv x86"
S="${WORKDIR}"
src_install() {
local files=( "${FILESDIR}"/stellarium.asc )
insinto /usr/share/openpgp-keys
newins - stellarium.asc < <(cat "${files[@]}" || die)
}