Include eclass for new nodejs ebuilds

New packages (zigbee2mqtt and node-red) from my gentoo overlay (https://github.com/inode64/inode64-overlay)

app-misc/zigbee2mqtt/Manifest

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+DIST zigbee2mqtt-1.30.1-node_modules.tar.xz 18782028 BLAKE2B ee85f5de70a6913b164c73420a5ff01761d5ed3e417951e57f391234e66cd5de76dc459fda84452e1615c544f064d89d156bb580137503a45237b4aae4e23a0b SHA512 d4454ef828c66974d1210b7cc1df7526e3e324addc4e420de13314a13070132e3b7958bf2e8fdac50648ed21f06340f5335fc5b947ee1815dea3035f38954876
+DIST zigbee2mqtt-1.30.1.tar.gz 483028 BLAKE2B 9c297c85a08ef911ad13b2722adecda6e01f0c5689a5225e3e4b0998c6a6626fe0ded2d64df0479c72971fc5f92f79cb65bdc3f8ecd1583b78d94168de1fcdba SHA512 b38accbaea044c0e5b28a4cef0652d90d7691ca936e82bdd82b39d8f77719ac750c067dcb58b9a9d2251dd821e81ed62eed8bbab3c232f516a7a6247fa575d58

app-misc/zigbee2mqtt/files/zigbee2mqtt

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+#!/sbin/openrc-run
+
+depend() {
+	need mosquitto
+}
+
+checkconfig() {
+	if [ ! -f /var/lib/${SVCNAME}/configuration.yaml ] ; then
+		eerror "No /var/lib/${SVCNAME}/configuration.yaml file exists!"
+	fi
+}
+
+start() {
+	checkconfig || return 1
+	ebegin "Starting ${SVCNAME}"
+	start-stop-daemon --start --user zigbee2mqtt:zigbee2mqtt --env ZIGBEE2MQTT_DATA=/var/lib/${SVCNAME} --chdir /usr/lib64/node_modules/zigbee2mqtt --exec /usr/bin/npm --background --make-pidfile --pidfile /run/${SVCNAME}.pid -- start
+	eend $?
+}
+
+stop() {
+	ebegin "Stopping ${SVCNAME}"
+	start-stop-daemon --stop --quiet --retry 10 --pidfile /run/${SVCNAME}.pid
+	eend $?
+}

app-misc/zigbee2mqtt/files/zigbee2mqtt.conf

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+d /var/lib/zigbee2mqtt 0750 zigbee2mqtt zigbee2mqtt
+f /var/lib/zigbee2mqtt//configuration.yaml 0640 zigbee2mqtt zigbee2mqtt
+d /var/log/zigbee2mqtt 0750 zigbee2mqtt zigbee2mqtt

app-misc/zigbee2mqtt/files/zigbee2mqtt.service

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+[Unit]
+Description=zigbee2mqtt
+After=network.target
+Wants=mosquitto.service
+
+[Service]
+ExecStart=npm start
+WorkingDirectory=/usr/lib64/node_modules/zigbee2mqtt
+Environment=ZIGBEE2MQTT_DATA=/var/lib/zigbee2mqtt
+StandardOutput=inherit
+StandardError=inherit
+Restart=always
+User=zigbee2mqtt
+
+CapabilityBoundingSet=
+NoNewPrivileges=true
+RemoveIPC=true
+LockPersonality=true
+
+ProtectControlGroups=true
+ProtectKernelTunables=true
+ProtectKernelModules=true
+ProtectKernelLogs=true
+ProtectHostname=true
+ProtectProc=noaccess
+ProtectClock=yes
+DeviceAllow=char-* rw
+
+RestrictRealtime=true
+RestrictSUIDSGID=true
+RestrictNamespaces=true
+RestrictAddressFamilies=AF_UNIX AF_INET AF_INET6
+
+ProtectSystem=strict
+ProtectHome=true
+PrivateTmp=true
+ReadWritePaths=/var/lib/zigbee2mqtt
+
+SystemCallArchitectures=native
+SystemCallFilter=@system-service @pkey
+
+[Install]
+WantedBy=multi-user.target

app-misc/zigbee2mqtt/metadata.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE pkgmetadata SYSTEM "https://www.gentoo.org/dtd/metadata.dtd">
+<pkgmetadata>
+	<maintainer type="person" proxied="yes">
+		<email>web@inode64.com</email>
+		<name>Fco. Javier Félix</name>
+	</maintainer>
+	<maintainer type="project" proxied="proxy">
+		<email>proxy-maint@gentoo.org</email>
+		<name>Proxy Maintainers</name>
+	</maintainer>
+	<upstream>
+		<remote-id type="github">Koenkk/zigbee2mqtt</remote-id>
+	</upstream>
+</pkgmetadata>

app-misc/zigbee2mqtt/zigbee2mqtt-1.30.1.ebuild

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+# Copyright 1999-2023 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+if [[ ${PV} == *9999* ]]; then
+	EGIT_REPO_URI="https://github.com/Koenkk/zigbee2mqtt"
+	EGIT_BRANCH="dev"
+	inherit git-r3
+else
+	SRC_URI="https://github.com/Koenkk/zigbee2mqtt/archive/${PV}.tar.gz -> ${P}.tar.gz
+		https://raw.githubusercontent.com/inode64/inode64-overlay/main/dist/${P}-node_modules.tar.xz"
+fi
+
+inherit nodejs nodejs-pack systemd tmpfiles
+
+DESCRIPTION="It bridges events and allows you to control your Zigbee devices via MQTT"
+HOMEPAGE="https://www.zigbee2mqtt.io/"
+COMMIT="eb878d3d8ee47f77e27c771452e2d2c77ca83bb5"
+
+LICENSE="GPL-3"
+SLOT="0"
+KEYWORDS="~amd64"
+
+RDEPEND="
+	acct-group/zigbee2mqtt
+	acct-user/zigbee2mqtt
+	app-misc/mosquitto
+"
+
+NODEJS_EXTRA_FILES="scripts"
+
+src_install() {
+	echo "${COMMIT}" > dist/.hash
+
+	echo -e "\nadvanced:" >>data/configuration.yaml
+	echo -e "  network_key: GENERATE" >>data/configuration.yaml
+	echo -e "  pan_id: GENERATE" >>data/configuration.yaml
+	echo -e "  log_directory: /var/log/${PN}" >>data/configuration.yaml
+
+	enpm_clean
+	enpm_install
+
+	keepdir /var/log/${PN}
+
+	insinto /var/lib/${PN}
+	doins data/configuration.yaml
+
+	dotmpfiles "${FILESDIR}"/zigbee2mqtt.conf
+
+	doinitd "${FILESDIR}"/${PN}
+	systemd_dounit "${FILESDIR}/${PN}.service"
+
+	dodir /etc/env.d
+	echo 'CONFIG_PROTECT="/var/lib/${PN}"' >>"${ED}"/etc/env.d/90${PN} || die
+}
+
+pkg_postinst() {
+	tmpfiles_process zigbee2mqtt.conf
+}