diff --git a/sys-kernel/libre-kernel/Manifest b/sys-kernel/libre-kernel/Manifest
index 91d3ce4..075e057 100644
--- a/sys-kernel/libre-kernel/Manifest
+++ b/sys-kernel/libre-kernel/Manifest
@@ -1,4 +1,5 @@
 DIST gentoo-kernel-config-g1.tar.gz 4283 BLAKE2B 44dd51ec45ebc71bffcd6d85a2fefba053f7bce8035057f0bbe928e24816ad4ba03c9bf67dcfcd6d6d1833c0a2ea93e0fd486c2093664dc41ccce316e1e60588 SHA512 3a45f28df9d457df0fe0d185da8b10f4e35f49dad75075e041e8cf3cf6972fecc8145cd557b0bf3a8dea20ddffae0194f88e61c1e5098fa0a5ca301d40aeea2e
 DIST kernel-x86_64-fedora.config.5.15.19 223286 BLAKE2B 239995703c01dcb6d179133dd115bc0a57872c07d7a08afaf4d92cf6d78f0c17b19487b5b399ac7fdde5d460fa7931628147817a569fef2c3a62951c96054bdf SHA512 9bee4aff7e5ef4ada57bee7496aaf47b8fdd5c936c4c9b580660d130db0678eaecdebdbcab0dfcaf5c17a71f6419069840db10f5886806b6fc810f8a3619554f
 DIST linux-libre-5.15.75-gnu.tar.xz 119675216 BLAKE2B 7b5658c5516062eeba00fdd02e20c135b2d693a48b2d73afa98bd3f0e58be67213f722a2707c43db48db75d8f015ebd824b19b74c3b9193c00af8dd58f21ea23 SHA512 c5fbb755500692a12e859218b0e5a3c42336be073b234b543a865d30f95af0854634b9a7454fb15c08c3635cec44af7f5a24c54945345fb6bbafb0805fa808c8
+DIST linux-libre-5.15.77-gnu.tar.xz 119696132 BLAKE2B c4a16a82a886c82954480f6063693edde3202e2c4981f40692c603d9917f5b39825b4b9c097c462ea42f3ae524a0aa5018fcd18c93ca908493e2aad6d18e5f7d SHA512 1b7309dd89ffc365722cdf2e0c0a8ed19ff769e22a90fd3a8b3fadc6d6a6dc442bf203c7cef075631b94d560144b3167a2f430fb27bf9c49946498917315aeb9
 DIST linux-libre-5.19.17-gnu.tar.xz 124362148 BLAKE2B d62685af7373f5eaeb45c3917fec5df6bec43742ded71e4fa91ac995b09a29bfbf50ffceb232749624497280b4ba3d092a84856f676ac8fe09924b1d6027c870 SHA512 a491a96d26fd88cc1fadc06fcb363b4a35f03b38bb62c8adbc6e0bf2fc136655978f19a438d83efedcaa1a8142f35c249a3e4c7256f1122c436d55ac4d1cf432
diff --git a/sys-kernel/libre-kernel/libre-kernel-5.15.77.ebuild b/sys-kernel/libre-kernel/libre-kernel-5.15.77.ebuild
new file mode 100644
index 0000000..13f78af
--- /dev/null
+++ b/sys-kernel/libre-kernel/libre-kernel-5.15.77.ebuild
@@ -0,0 +1,138 @@
+# Copyright 2020-2022 Gentoo Authors, projectmoon
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+inherit kernel-build
+
+BASE_VER="$(ver_cut 1).$(ver_cut 2).$(ver_cut 3)"
+RESTRICT="mirror"
+
+# https://koji.fedoraproject.org/koji/packageinfo?packageID=8
+CONFIG_VER=5.15.19
+CONFIG_HASH=ec69da7a42b5b7c3da91572ef22097b069ddbd01
+GENTOO_CONFIG_VER=g1
+
+DESCRIPTION="GNU Linux-libre kernel built from upstream sources"
+HOMEPAGE="https://www.fsfla.org/ikiwiki/selibre/linux-libre/"
+SRC_URI+="
+	https://linux-libre.fsfla.org/pub/linux-libre/releases/${BASE_VER}-gnu/linux-libre-${BASE_VER}-gnu.tar.xz
+	https://github.com/projg2/gentoo-kernel-config/archive/${GENTOO_CONFIG_VER}.tar.gz
+		-> gentoo-kernel-config-${GENTOO_CONFIG_VER}.tar.gz
+	amd64? (
+		https://src.fedoraproject.org/rpms/kernel/raw/${CONFIG_HASH}/f/kernel-x86_64-fedora.config
+			-> kernel-x86_64-fedora.config.${CONFIG_VER}
+	)
+"
+
+# Workdir is named linux-PV.
+MY_P=linux-${PV}
+S=${WORKDIR}/${MY_P}
+
+LICENSE="GPL-2"
+KEYWORDS="amd64"
+IUSE="debug"
+
+BDEPEND="
+	debug? ( dev-util/pahole )
+"
+PDEPEND="
+	>=virtual/dist-kernel-${PV}
+"
+
+pkg_pretend() {
+	if has_version -d sys-kernel/linux-firmware[redistributable]; then
+		ewarn "sys-kernel/linux-firmware was found installed on your system,"
+		ewarn "but it is configured to install non-Free firmware files."
+		ewarn "The non-Free firmware files may be required for some hardware"
+		ewarn "work. The Linux-libre kernel cannot load non-Free firmware."
+		ewarn "To install only the Free firmware, set the -redistributable"
+		ewarn "USE flag on sys-kernel/linux-firmware."
+
+		if use initramfs; then
+			elog
+			elog "If you decide to change or remove linux-firmware later, you"
+			elog "can rebuild the initramfs via issuing a command equivalent to:"
+			elog
+			elog "    emerge --config ${CATEGORY}/${PN}:${SLOT}"
+		fi
+	else
+		if ! has_version -d sys-kernel/linux-firmware; then
+			ewarn "sys-kernel/linux-firmware[-redistributable] not found installed"
+			ewarn "on your system. This package provides various firmware files that"
+			ewarn "may be needed for your hardware to work.  If in doubt, it is recommended"
+			ewarn "to pause or abort the build process and install it before"
+			ewarn "resuming."
+
+			if use initramfs; then
+				elog
+				elog "If you decide to install linux-firmware later, you can rebuild"
+				elog "the initramfs via issuing a command equivalent to:"
+				elog
+				elog "    emerge --config ${CATEGORY}/${PN}:${SLOT}"
+			fi
+		fi
+	fi
+}
+
+src_unpack() {
+	default
+}
+
+src_prepare() {
+	default
+
+	local biendian=false
+
+	# prepare the default config
+	case ${ARCH} in
+		amd64)
+			cp "${DISTDIR}/kernel-x86_64-fedora.config.${CONFIG_VER}" .config || die
+			;;
+		arm)
+			return
+			;;
+		arm64)
+			cp "${DISTDIR}/kernel-aarch64-fedora.config.${CONFIG_VER}" .config || die
+			biendian=true
+			;;
+		hppa)
+			return
+			;;
+		ppc)
+			# assume powermac/powerbook defconfig
+			# we still package.use.force savedconfig
+			cp "${WORKDIR}/${MY_P}/arch/powerpc/configs/pmac32_defconfig" .config || die
+			;;
+		ppc64)
+			cp "${DISTDIR}/kernel-ppc64le-fedora.config.${CONFIG_VER}" .config || die
+			biendian=true
+			;;
+		x86)
+			cp "${DISTDIR}/kernel-i686-fedora.config.${CONFIG_VER}" .config || die
+			;;
+		*)
+			die "Unsupported arch ${ARCH}"
+			;;
+	esac
+
+	sed -i 's/EXTRAVERSION = -gnu/EXTRAVERSION = /' "${S}"/Makefile || die 'could not remove EXTRAVERSION'
+	local myversion="-gnu-dist"
+	echo "CONFIG_LOCALVERSION=\"${myversion}\"" > "${T}"/version.config || die
+	local dist_conf_path="${WORKDIR}/gentoo-kernel-config-${GENTOO_CONFIG_VER}"
+
+	local merge_configs=(
+		"${T}"/version.config
+		"${dist_conf_path}"/base.config
+	)
+	use debug || merge_configs+=(
+		"${dist_conf_path}"/no-debug.config
+	)
+
+	# this covers ppc64 and aarch64_be only for now
+	if [[ ${biendian} == true && $(tc-endian) == big ]]; then
+		merge_configs+=( "${dist_conf_path}/big-endian.config" )
+	fi
+
+	kernel-build_merge_configs "${merge_configs[@]}"
+}