Install this version:
emerge -a =kde-plasma/knighttime-6.6.4
If this version is masked, you can unmask it using the autounmask tool or standard emerge options:
autounmask =kde-plasma/knighttime-6.6.4
Or alternatively:
emerge --autounmask-write -a =kde-plasma/knighttime-6.6.4
# Copyright 2025-2026 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2
EAPI=8
ECM_TEST="true"
KFMIN=6.22.0
QTMIN=6.10.1
inherit ecm plasma.kde.org xdg
DESCRIPTION="Helpers for scheduling the dark-light cycle"
LICENSE="BSD CC0-1.0 || ( GPL-2 GPL-3 ) || ( LGPL-2.1 LGPL-3 )"
SLOT="6"
KEYWORDS="~amd64 ~arm64 ~loong ~ppc64 ~riscv ~x86"
DEPEND="
>=dev-qt/qtbase-${QTMIN}:6[dbus,gui]
>=dev-qt/qtpositioning-${QTMIN}:6
>=kde-frameworks/kconfig-${KFMIN}:6
>=kde-frameworks/kcoreaddons-${KFMIN}:6
>=kde-frameworks/kdbusaddons-${KFMIN}:6
>=kde-frameworks/kholidays-${KFMIN}:6
>=kde-frameworks/ki18n-${KFMIN}:6
"
RDEPEND="${DEPEND}"
>=dev-qt/qtbase-6.10.1:6[dbus,gui] >=dev-qt/qtpositioning-:6 >=kde-frameworks/kconfig-6.22.0:6 >=kde-frameworks/kcoreaddons-:6 >=kde-frameworks/kdbusaddons-:6 >=kde-frameworks/kholidays-:6 >=kde-frameworks/ki18n-:6
>=dev-qt/qtbase-6.10.1:6[dbus,gui] >=dev-qt/qtpositioning-:6 >=kde-frameworks/kconfig-6.22.0:6 >=kde-frameworks/kcoreaddons-:6 >=kde-frameworks/kdbusaddons-:6 >=kde-frameworks/kholidays-:6 >=kde-frameworks/ki18n-:6