diff -rupN PackageKit-1.2.1/data/meson.build PackageKit-1.2.1-systemd-timers/data/meson.build
--- PackageKit-1.2.1/data/meson.build	2020-09-07 05:14:48.836002600 -0400
+++ PackageKit-1.2.1-systemd-timers/data/meson.build	2020-09-07 10:26:55.514657134 -0400
@@ -6,6 +6,7 @@ install_data(
 dbus_config_data = configuration_data()
 dbus_config_data.set('PACKAGEKIT_USER', get_option('packagekit_user'))
 dbus_config_data.set('libexecdir', join_paths(get_option('prefix'), get_option('libexecdir')))
+dbus_config_data.set('datadir', join_paths(get_option('prefix'), get_option('datadir')))
 
 dbus_sys_dir = get_option('dbus_sys')
 if dbus_sys_dir == ''
@@ -43,6 +44,24 @@ if get_option('systemd')
     install_dir: systemd_system_unit_dir,
   )
 
+  configure_file(
+    input: 'packagekit-background.service.in',
+    output: 'packagekit-background.service',
+    configuration: dbus_config_data,
+    install: true,
+    install_dir: systemd_system_unit_dir,
+  )
+
+  install_data(
+    'packagekit-background.timer',
+    install_dir: systemd_system_unit_dir,
+  )
+
+  install_data(
+    'packagekit-background.sh',
+    install_dir: join_paths(get_option('datadir'), 'PackageKit'),
+  )
+
   if get_option('offline_update')
     configure_file(
       input: 'packagekit-offline-update.service.in',
diff -rupN PackageKit-1.2.1/data/packagekit-background.service.in PackageKit-1.2.1-systemd-timers/data/packagekit-background.service.in
--- PackageKit-1.2.1/data/packagekit-background.service.in	1969-12-31 19:00:00.000000000 -0500
+++ PackageKit-1.2.1-systemd-timers/data/packagekit-background.service.in	2020-09-07 10:27:07.897771008 -0400
@@ -0,0 +1,5 @@
+[Unit]
+Description=Script to update the system with PackageKit
+
+[Service]
+ExecStart=@datadir@/PackageKit/packagekit-background.sh
diff -rupN PackageKit-1.2.1/data/packagekit-background.sh PackageKit-1.2.1-systemd-timers/data/packagekit-background.sh
--- PackageKit-1.2.1/data/packagekit-background.sh	1969-12-31 19:00:00.000000000 -0500
+++ PackageKit-1.2.1-systemd-timers/data/packagekit-background.sh	2020-09-07 10:17:37.609526652 -0400
@@ -0,0 +1,102 @@
+#!/bin/bash
+# Copyright (C) 2008 Richard Hughes <richard@hughsie.com>
+#
+# Some material taken from yum-cron, Copyright 2007 Alec Habig <ahabig@umn.edu>
+#
+# Licensed under the GNU General Public License Version 2
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+
+## Type:    yesno
+## Default: no
+#
+# Run the cron job.
+#
+ENABLED=no
+
+## Type:    yesno
+## Default: no
+#
+# Check if updates are available, instead of installing.
+#
+CHECK_ONLY=no
+
+## Type:    yesno
+## Default: no
+#
+# Trigger updates, so they will be installed on reboot.
+#
+UPDATE_OFFLINE=no
+
+## Type:    string
+## Default: ""
+#
+# If MAILTO is set, the mail command is used to deliver PackageKit output.
+# By default MAILTO is unset, so crond mails the output by itself.
+#
+MAILTO=""
+
+## Type:    string
+## Default: ""
+#
+# You may set SYSTEM_NAME if you want your PackageKit emails tagged differently.
+# Default is output of hostname command.
+#
+SYSTEM_NAME=""
+
+## Type:    integer
+## Default: 3600
+#
+# Update checks will sleep random time before contacting the servers to
+# avoid hammering them with thousands of request at the same time - this
+# is the maximum sleep time (in seconds) for the random wait period.
+#
+SLEEP_MAX=3600
+
+# are we disabled?
+if [ "$ENABLED" = "no" ]; then
+	exit 0
+fi
+
+# set default for SYSTEM_NAME
+[ -z "$SYSTEM_NAME" ] && SYSTEM_NAME=$(hostname)
+
+PKTMP=$(mktemp /var/run/packagekit-cron.XXXXXX)
+PKCON_OPTIONS="--background --noninteractive --plain"
+if [ "$UPDATE_OFFLINE" = "yes" ]; then
+	ONLY_DOWNLOAD="--only-download"
+else
+	ONLY_DOWNLOAD=""
+fi
+
+# wait a random amount of time to avoid hammering the servers
+[ -z "$SLEEP_MAX" ] && SLEEP_MAX=$RANDOM
+sleep $(( $RANDOM % $SLEEP_MAX + 1 ))
+
+# do action
+if [ "$CHECK_ONLY" = "yes" ]; then
+	pkcon $PKCON_OPTIONS get-updates &> $PKTMP
+	PKCON_RETVAL=$?
+else
+	pkcon $PKCON_OPTIONS $ONLY_DOWNLOAD update &> $PKTMP
+	PKCON_RETVAL=$?
+	if [ $PKCON_RETVAL -eq 0 -a "$UPDATE_OFFLINE" = "yes" ]; then
+		pkcon $PKCON_OPTIONS offline-trigger &> $PKTMP
+	fi
+fi
+
+# this is when seomthing useful was done
+if [ $PKCON_RETVAL -ne 5 ]; then
+	# send email
+	if [ -n "$MAILTO" ]; then
+		mail -Ssendwait -s "System updates available: $SYSTEM_NAME" $MAILTO < $PKTMP
+	else
+		# default behavior is to use cron's internal mailing of output from cron-script
+		cat $PKTMP
+	fi
+fi
+
+rm -f $PKTMP
+
diff -rupN PackageKit-1.2.1/data/packagekit-background.timer PackageKit-1.2.1-systemd-timers/data/packagekit-background.timer
--- PackageKit-1.2.1/data/packagekit-background.timer	1969-12-31 19:00:00.000000000 -0500
+++ PackageKit-1.2.1-systemd-timers/data/packagekit-background.timer	2020-09-07 10:17:37.609526652 -0400
@@ -0,0 +1,11 @@
+[Unit]
+Description=Systemd timer to update the system daily with PackageKit
+
+[Timer]
+OnCalendar=daily
+AccuracySec=12h
+Persistent=true
+Unit=packagekit-background.service
+
+[Install]
+WantedBy=timers.target