[gnome-settings-daemon/wip/benzea/systemd-user: 5/5] plugins: Add systemd user service files for all the plugins

From: Benjamin Berg <bberg src gnome org>
To: commits-list gnome org
Cc:
Subject: [gnome-settings-daemon/wip/benzea/systemd-user: 5/5] plugins: Add systemd user service files for all the plugins
Date: Fri, 2 Aug 2019 11:38:59 +0000 (UTC)
commit da48c410633ef61bfcc379958284df252d9ea545
Author: Benjamin Berg <bberg redhat com>
Date:   Sat Apr 20 00:39:15 2019 +0200

    plugins: Add systemd user service files for all the plugins
    
    Using the facility added in the previous commit, we can add systemd user
    service files for all plugins and know when they have started up.
    
    This is roughly based on the work previously done by Iain Lane
    <iain orangesquash org uk> and Bastien Nocera hadess hadess net>.
    
    For each g-s-d process we have a service and a target file. This
    separation only exists to contain dependency failures which would cause
    an OnFailure action to trigger and is needed so that we can use
    OnFailure for the gnome-session fail-whale
    (gnome-session-failed.target).
    
    In general, the approach taken is that we start g-s-d processes after
    gnome-session-initialized.target and before gnome-session.target.
    
    We want to be able to selectively start the services only when one or
    more dependencies are there, or even mask out services under some
    conditions. The approach taken is the following:
     * To mask a service, use a Conflicts entry. This is e.g. used to not
       start certain services in GDM using
         Conflicts=gnome-session@gnome-login.target
     * To depend on multiple targets to be up and running to start, we set
       each of these targets in Requisite/After/PartOf/WantedBy. We always
       do this for gnome-session-initialized.target but this method is
       extensible to any number of further targets (e.g. bluetooth.target)

 meson.build                                        | 15 +++++
 meson_options.txt                                  |  1 +
 plugins/a11y-settings/gsd-a11y-settings.service.in | 18 ++++++
 plugins/a11y-settings/gsd-a11y-settings.target.in  | 10 ++++
 ...rg.gnome.SettingsDaemon.A11ySettings.desktop.in |  1 +
 plugins/color/gsd-color.service.in                 | 19 ++++++
 plugins/color/gsd-color.target.in                  | 10 ++++
 .../org.gnome.SettingsDaemon.Color.desktop.in      |  1 +
 plugins/common/daemon-skeleton-gtk.h               | 49 +++-------------
 plugins/common/daemon-skeleton.h                   | 46 ++-------------
 plugins/datetime/gsd-datetime.service.in           | 18 ++++++
 plugins/datetime/gsd-datetime.target.in            | 13 +++++
 .../org.gnome.SettingsDaemon.Datetime.desktop.in   |  1 +
 plugins/dummy/gsd-dummy.service.in                 | 18 ++++++
 plugins/dummy/gsd-dummy.target.in                  | 28 +++++++++
 .../org.gnome.SettingsDaemon.Dummy.desktop.in      |  1 +
 plugins/housekeeping/gsd-housekeeping.service.in   | 18 ++++++
 plugins/housekeeping/gsd-housekeeping.target.in    | 13 +++++
 ...rg.gnome.SettingsDaemon.Housekeeping.desktop.in |  1 +
 plugins/keyboard/gsd-keyboard.service.in           | 18 ++++++
 plugins/keyboard/gsd-keyboard.target.in            | 10 ++++
 .../org.gnome.SettingsDaemon.Keyboard.desktop.in   |  1 +
 plugins/media-keys/gsd-media-keys.service.in       | 18 ++++++
 plugins/media-keys/gsd-media-keys.target.in        | 10 ++++
 .../org.gnome.SettingsDaemon.MediaKeys.desktop.in  |  1 +
 plugins/meson-add-wants.sh                         | 30 ++++++++++
 plugins/meson.build                                | 68 ++++++++++++++++++++--
 plugins/power/gsd-power.service.in                 | 18 ++++++
 plugins/power/gsd-power.target.in                  | 10 ++++
 .../org.gnome.SettingsDaemon.Power.desktop.in      |  1 +
 .../gsd-print-notifications.service.in             | 18 ++++++
 .../gsd-print-notifications.target.in              | 10 ++++
 ...me.SettingsDaemon.PrintNotifications.desktop.in |  1 +
 plugins/rfkill/gsd-rfkill.service.in               | 18 ++++++
 plugins/rfkill/gsd-rfkill.target.in                | 10 ++++
 .../org.gnome.SettingsDaemon.Rfkill.desktop.in     |  1 +
 .../gsd-screensaver-proxy.service.in               | 18 ++++++
 .../gsd-screensaver-proxy.target.in                | 13 +++++
 ...nome.SettingsDaemon.ScreensaverProxy.desktop.in |  1 +
 plugins/sharing/gsd-sharing.service.in             | 18 ++++++
 plugins/sharing/gsd-sharing.target.in              | 13 +++++
 .../org.gnome.SettingsDaemon.Sharing.desktop.in    |  1 +
 plugins/smartcard/gsd-smartcard.service.in         | 18 ++++++
 plugins/smartcard/gsd-smartcard.target.in          | 17 ++++++
 .../org.gnome.SettingsDaemon.Smartcard.desktop.in  |  1 +
 plugins/sound/gsd-sound.service.in                 | 18 ++++++
 plugins/sound/gsd-sound.target.in                  | 14 +++++
 .../org.gnome.SettingsDaemon.Sound.desktop.in      |  1 +
 plugins/wacom/gsd-wacom.service.in                 | 18 ++++++
 plugins/wacom/gsd-wacom.target.in                  | 16 +++++
 .../org.gnome.SettingsDaemon.Wacom.desktop.in      |  1 +
 plugins/xsettings/gsd-xsettings.service.in         | 18 ++++++
 plugins/xsettings/gsd-xsettings.target.in          | 16 +++++
 .../org.gnome.SettingsDaemon.XSettings.desktop.in  |  1 +
 54 files changed, 639 insertions(+), 88 deletions(-)
---
diff --git a/meson.build b/meson.build
index f56984d5..9fbd5e08 100644
--- a/meson.build
+++ b/meson.build
@@ -102,6 +102,18 @@ polkit_gobject_dep = dependency('polkit-gobject-1', version: '>= 0.114')
 upower_glib_dep = dependency('upower-glib', version: '>= 0.99.8')
 x11_dep = dependency('x11')
 
+enable_systemd = get_option('systemd')
+if enable_systemd
+  systemd_dep = dependency('systemd', required: false)
+  assert(systemd_dep.found(), 'Systemd support explicitly required, but systemd not found')
+
+  # XXX: Once https://github.com/systemd/systemd/issues/9595 is fixed and we can
+  # depend on this version, replace with something like:
+  #  systemduserunitdir = systemd_dep.get_pkgconfig_variable('systemduserunitdir')
+  # and uncomment systemd_dep below
+  systemd_userunitdir = join_paths(gsd_prefix, 'lib', 'systemd', 'user')
+endif
+
 m_dep = cc.find_library('m')
 
 # ALSA integration (default enabled)
@@ -245,6 +257,9 @@ output += '        RFKill support:           ' + enable_rfkill.to_string() + '\n
 if enable_smartcard
   output += '        System nssdb:             ' + system_nssdb_dir + '\n'
 endif
+if enable_systemd
+  output += '        Systemd user unit dir:    ' + systemd_userunitdir + '\n'
+endif
 if enable_rfkill
   output += '        udev dir:                 ' + udev_dir + '\n'
 endif
diff --git a/meson_options.txt b/meson_options.txt
index 50bd1749..0e85a440 100644
--- a/meson_options.txt
+++ b/meson_options.txt
@@ -1,5 +1,6 @@
 option('nssdb_dir', type: 'string', value: '', description: 'Absolute path to the system NSS database 
directory')
 option('udev_dir', type: 'string', value: '', description: 'Absolute path of the udev base directory')
+option('systemd', type: 'boolean', value: true, description: 'Enable systemd integration')
 
 option('alsa', type: 'boolean', value: true, description: 'build with ALSA support (not optional on Linux 
platforms)')
 option('gudev', type: 'boolean', value: true, description: 'build with gudev device support (not optional on 
Linux platforms)')
diff --git a/plugins/a11y-settings/gsd-a11y-settings.service.in 
b/plugins/a11y-settings/gsd-a11y-settings.service.in
new file mode 100644
index 00000000..d5fa3792
--- /dev/null
+++ b/plugins/a11y-settings/gsd-a11y-settings.service.in
@@ -0,0 +1,18 @@
+[Unit]
+Description=GNOME Accessibility settings
+# Note that we do the shenanigans with having a target and a service solely
+# so that OnFailure is not called in case of a dependency failure.
+# See also https://github.com/systemd/systemd/issues/12352
+OnFailure=gnome-session-failed.target
+CollectMode=inactive-or-failed
+RefuseManualStart=true
+RefuseManualStop=true
+
+PartOf=gsd-a11y-settings.target
+After=gnome-session-initialized.target
+
+[Service]
+Type=dbus
+ExecStart=@libexecdir@/gsd-a11y-settings
+Restart=on-failure
+BusName=@plugin_dbus_name@
diff --git a/plugins/a11y-settings/gsd-a11y-settings.target.in 
b/plugins/a11y-settings/gsd-a11y-settings.target.in
new file mode 100644
index 00000000..638d2f70
--- /dev/null
+++ b/plugins/a11y-settings/gsd-a11y-settings.target.in
@@ -0,0 +1,10 @@
+[Unit]
+Description=GNOME Accessibility settings
+
+BindsTo=gsd-a11y-settings.service
+After=gsd-a11y-settings.service
+
+Requisite=gnome-session-initialized.target
+After=gnome-session-initialized.target
+PartOf=gnome-session-initialized.target
+Before=gnome-session.target
diff --git a/plugins/a11y-settings/org.gnome.SettingsDaemon.A11ySettings.desktop.in 
b/plugins/a11y-settings/org.gnome.SettingsDaemon.A11ySettings.desktop.in
index 2f0ac936..02faf401 100644
--- a/plugins/a11y-settings/org.gnome.SettingsDaemon.A11ySettings.desktop.in
+++ b/plugins/a11y-settings/org.gnome.SettingsDaemon.A11ySettings.desktop.in
@@ -7,3 +7,4 @@ NoDisplay=true
 X-GNOME-Autostart-Phase=Initialization
 X-GNOME-Autostart-Notify=true
 X-GNOME-AutoRestart=true
+X-GNOME-HiddenUnderSystemd=@systemd_hidden@
diff --git a/plugins/color/gsd-color.service.in b/plugins/color/gsd-color.service.in
new file mode 100644
index 00000000..b51b5e4e
--- /dev/null
+++ b/plugins/color/gsd-color.service.in
@@ -0,0 +1,19 @@
+[Unit]
+Description=GNOME Color management
+# Note that we do the shenanigans with having a target and a service solely
+# so that OnFailure is not called in case of a dependency failure.
+# See also https://github.com/systemd/systemd/issues/12352
+OnFailure=gnome-session-failed.target
+CollectMode=inactive-or-failed
+RefuseManualStart=true
+RefuseManualStop=true
+
+PartOf=gsd-color.target
+After=gnome-session-initialized.target
+
+[Service]
+Type=dbus
+ExecStart=@libexecdir@/gsd-color
+Restart=on-failure
+BusName=@plugin_dbus_name@
+
diff --git a/plugins/color/gsd-color.target.in b/plugins/color/gsd-color.target.in
new file mode 100644
index 00000000..fe27b65c
--- /dev/null
+++ b/plugins/color/gsd-color.target.in
@@ -0,0 +1,10 @@
+[Unit]
+Description=GNOME Color management
+
+BindsTo=gsd-color.service
+After=gsd-color.service
+
+Requisite=gnome-session-initialized.target
+After=gnome-session-initialized.target
+PartOf=gnome-session-initialized.target
+Before=gnome-session.target
diff --git a/plugins/color/org.gnome.SettingsDaemon.Color.desktop.in 
b/plugins/color/org.gnome.SettingsDaemon.Color.desktop.in
index a9d72231..6cf58d41 100644
--- a/plugins/color/org.gnome.SettingsDaemon.Color.desktop.in
+++ b/plugins/color/org.gnome.SettingsDaemon.Color.desktop.in
@@ -7,3 +7,4 @@ NoDisplay=true
 X-GNOME-Autostart-Phase=Initialization
 X-GNOME-Autostart-Notify=true
 X-GNOME-AutoRestart=true
+X-GNOME-HiddenUnderSystemd=@systemd_hidden@
diff --git a/plugins/common/daemon-skeleton-gtk.h b/plugins/common/daemon-skeleton-gtk.h
index 6253c44c..87bafb3d 100644
--- a/plugins/common/daemon-skeleton-gtk.h
+++ b/plugins/common/daemon-skeleton-gtk.h
@@ -40,37 +40,6 @@ static GOptionEntry entries[] = {
         {NULL}
 };
 
-static const char *gdm_helpers[] = {
-       "a11y-keyboard",
-       "a11y-settings",
-       "clipboard",
-       "color",
-       "keyboard",
-       "media-keys",
-       "power",
-       "smartcard",
-       "sound",
-       "xsettings",
-       "wacom",
-};
-
-static gboolean
-should_run (void)
-{
-       const char *session_mode;
-       guint i;
-
-       session_mode = g_getenv ("GNOME_SHELL_SESSION_MODE");
-       if (g_strcmp0 (session_mode, "gdm") != 0)
-               return TRUE;
-
-       for (i = 0; i < G_N_ELEMENTS (gdm_helpers); i++) {
-               if (g_str_equal (PLUGIN_NAME, gdm_helpers[i]))
-                       return TRUE;
-       }
-       return FALSE;
-}
-
 static void
 respond_to_end_session (GDBusProxy *proxy)
 {
@@ -242,7 +211,7 @@ name_lost_cb (GDBusConnection *connection,
 int
 main (int argc, char **argv)
 {
-        GError  *error;
+        GError  *error = NULL;
         guint name_own_id;
 
         bindtextdomain (GETTEXT_PACKAGE, GNOME_SETTINGS_LOCALEDIR);
@@ -291,14 +260,11 @@ main (int argc, char **argv)
         manager = NEW ();
        register_with_gnome_session ();
 
-       if (should_run ()) {
-               error = NULL;
-               if (!START (manager, &error)) {
-                       fprintf (stderr, "Failed to start: %s\n", error->message);
-                       g_error_free (error);
-                       exit (1);
-               }
-       }
+        if (!START (manager, &error)) {
+                fprintf (stderr, "Failed to start: %s\n", error->message);
+                g_error_free (error);
+                exit (1);
+        }
 
        name_own_id = g_bus_own_name (G_BUS_TYPE_SESSION,
                                      PLUGIN_DBUS_NAME,
@@ -311,8 +277,7 @@ main (int argc, char **argv)
 
         gtk_main ();
 
-       if (should_run ())
-               STOP (manager);
+        STOP (manager);
 
         g_object_unref (manager);
         g_bus_unown_name (name_own_id);
diff --git a/plugins/common/daemon-skeleton.h b/plugins/common/daemon-skeleton.h
index 49a3d930..40b7f149 100644
--- a/plugins/common/daemon-skeleton.h
+++ b/plugins/common/daemon-skeleton.h
@@ -43,36 +43,6 @@ static GOptionEntry entries[] = {
         {NULL}
 };
 
-static const char *gdm_helpers[] = {
-       "a11y-keyboard",
-       "a11y-settings",
-       "clipboard",
-       "color",
-       "keyboard",
-       "media-keys",
-       "power",
-       "smartcard",
-       "sound",
-       "xsettings"
-};
-
-static gboolean
-should_run (void)
-{
-       const char *session_mode;
-       guint i;
-
-       session_mode = g_getenv ("GNOME_SHELL_SESSION_MODE");
-       if (g_strcmp0 (session_mode, "gdm") != 0)
-               return TRUE;
-
-       for (i = 0; i < G_N_ELEMENTS (gdm_helpers); i++) {
-               if (g_str_equal (PLUGIN_NAME, gdm_helpers[i]))
-                       return TRUE;
-       }
-       return FALSE;
-}
-
 static void
 respond_to_end_session (GDBusProxy *proxy)
 {
@@ -268,14 +238,11 @@ main (int argc, char **argv)
         manager = NEW ();
        register_with_gnome_session (loop);
 
-       if (should_run ()) {
-               error = NULL;
-               if (!START (manager, &error)) {
-                       fprintf (stderr, "Failed to start: %s\n", error->message);
-                       g_error_free (error);
-                       exit (1);
-               }
-       }
+        if (!START (manager, &error)) {
+                fprintf (stderr, "Failed to start: %s\n", error->message);
+                g_error_free (error);
+                exit (1);
+        }
 
        name_own_id = g_bus_own_name (G_BUS_TYPE_SESSION,
                                      PLUGIN_DBUS_NAME,
@@ -288,8 +255,7 @@ main (int argc, char **argv)
 
         g_main_loop_run (loop);
 
-       if (should_run ())
-               STOP (manager);
+        STOP (manager);
 
         g_object_unref (manager);
         g_bus_unown_name (name_own_id);
diff --git a/plugins/datetime/gsd-datetime.service.in b/plugins/datetime/gsd-datetime.service.in
new file mode 100644
index 00000000..980a6c91
--- /dev/null
+++ b/plugins/datetime/gsd-datetime.service.in
@@ -0,0 +1,18 @@
+[Unit]
+Description=GNOME Date & Time handling
+# Note that we do the shenanigans with having a target and a service solely
+# so that OnFailure is not called in case of a dependency failure.
+# See also https://github.com/systemd/systemd/issues/12352
+OnFailure=gnome-session-failed.target
+CollectMode=inactive-or-failed
+RefuseManualStart=true
+RefuseManualStop=true
+
+PartOf=gsd-datetime.target
+After=gnome-session-initialized.target
+
+[Service]
+Type=dbus
+ExecStart=@libexecdir@/gsd-datetime
+Restart=on-failure
+BusName=@plugin_dbus_name@
diff --git a/plugins/datetime/gsd-datetime.target.in b/plugins/datetime/gsd-datetime.target.in
new file mode 100644
index 00000000..88df818c
--- /dev/null
+++ b/plugins/datetime/gsd-datetime.target.in
@@ -0,0 +1,13 @@
+[Unit]
+Description=GNOME Date & Time handling
+
+BindsTo=gsd-datetime.service
+After=gsd-datetime.service
+
+Requisite=gnome-session-initialized.target
+After=gnome-session-initialized.target
+PartOf=gnome-session-initialized.target
+Before=gnome-session.target
+
+Conflicts=gnome-session@gnome-login.target
+Conflicts=gnome-session@gnome-initial-setup.target
diff --git a/plugins/datetime/org.gnome.SettingsDaemon.Datetime.desktop.in 
b/plugins/datetime/org.gnome.SettingsDaemon.Datetime.desktop.in
index ac99312f..567b9a0a 100644
--- a/plugins/datetime/org.gnome.SettingsDaemon.Datetime.desktop.in
+++ b/plugins/datetime/org.gnome.SettingsDaemon.Datetime.desktop.in
@@ -7,3 +7,4 @@ NoDisplay=true
 X-GNOME-Autostart-Phase=Initialization
 X-GNOME-Autostart-Notify=true
 X-GNOME-AutoRestart=true
+X-GNOME-HiddenUnderSystemd=@systemd_hidden@
diff --git a/plugins/dummy/gsd-dummy.service.in b/plugins/dummy/gsd-dummy.service.in
new file mode 100644
index 00000000..554df09c
--- /dev/null
+++ b/plugins/dummy/gsd-dummy.service.in
@@ -0,0 +1,18 @@
+[Unit]
+Description=GNOME Settings Daemon dummy replacement plugin (@pluginname@)
+# Note that we do the shenanigans with having a target and a service solely
+# so that OnFailure is not called in case of a dependency failure.
+# See also https://github.com/systemd/systemd/issues/12352
+OnFailure=gnome-session-failed.target
+CollectMode=inactive-or-failed
+RefuseManualStart=true
+RefuseManualStop=true
+
+PartOf=gsd-dummy.target
+After=gnome-session-initialized.target
+
+[Service]
+Type=dbus
+ExecStart=@libexecdir@/gsd-dummy --dummy-name=@pluginname@
+Restart=on-failure
+BusName=@plugin_dbus_name@
diff --git a/plugins/dummy/gsd-dummy.target.in b/plugins/dummy/gsd-dummy.target.in
new file mode 100644
index 00000000..bf680ef0
--- /dev/null
+++ b/plugins/dummy/gsd-dummy.target.in
@@ -0,0 +1,28 @@
+[Unit]
+Description=GNOME Settings Daemon dummy replacement plugin (@pluginname@)
+
+BindsTo=gsd-dummy.service
+After=gsd-dummy.service
+
+Requisite=gnome-session-initialized.target
+After=gnome-session-initialized.target
+PartOf=gnome-session-initialized.target
+Before=gnome-session.target
+
+# See require-started.target on how to require another unit to be already running
+# See dependency.target on how to start a dependency and require it to be present
+#
+#Requisite=require-started.target
+#After=require-started.target
+#PartOf=require-started.target
+#Requires=dependency.target
+#After=dependency.target
+#
+# Also add PartOf if this unit should be stopped together with dependency.target
+#PartOf=dependency.target
+
+# This is what the install section would look like, but we create the symlinks
+# through meson
+#[Install]
+#WantedBy=gnome-session-initialized.target
+##WantedBy=require-started.target
diff --git a/plugins/dummy/org.gnome.SettingsDaemon.Dummy.desktop.in 
b/plugins/dummy/org.gnome.SettingsDaemon.Dummy.desktop.in
index fa80c87d..a946da92 100644
--- a/plugins/dummy/org.gnome.SettingsDaemon.Dummy.desktop.in
+++ b/plugins/dummy/org.gnome.SettingsDaemon.Dummy.desktop.in
@@ -7,3 +7,4 @@ NoDisplay=true
 X-GNOME-Autostart-Phase=Initialization
 X-GNOME-Autostart-Notify=true
 X-GNOME-AutoRestart=true
+X-GNOME-HiddenUnderSystemd=@systemd_hidden@
diff --git a/plugins/housekeeping/gsd-housekeeping.service.in 
b/plugins/housekeeping/gsd-housekeeping.service.in
new file mode 100644
index 00000000..176e24d2
--- /dev/null
+++ b/plugins/housekeeping/gsd-housekeeping.service.in
@@ -0,0 +1,18 @@
+[Unit]
+Description=GNOME Maintenance of expirable data
+# Note that we do the shenanigans with having a target and a service solely
+# so that OnFailure is not called in case of a dependency failure.
+# See also https://github.com/systemd/systemd/issues/12352
+OnFailure=gnome-session-failed.target
+CollectMode=inactive-or-failed
+RefuseManualStart=true
+RefuseManualStop=true
+
+PartOf=gsd-housekeeping.target
+After=gnome-session-initialized.target
+
+[Service]
+Type=dbus
+ExecStart=@libexecdir@/gsd-housekeeping
+Restart=on-failure
+BusName=@plugin_dbus_name@
diff --git a/plugins/housekeeping/gsd-housekeeping.target.in b/plugins/housekeeping/gsd-housekeeping.target.in
new file mode 100644
index 00000000..5b70f267
--- /dev/null
+++ b/plugins/housekeeping/gsd-housekeeping.target.in
@@ -0,0 +1,13 @@
+[Unit]
+Description=GNOME Maintenance of expirable data
+
+BindsTo=gsd-housekeeping.service
+After=gsd-housekeeping.service
+
+Requisite=gnome-session-initialized.target
+After=gnome-session-initialized.target
+PartOf=gnome-session-initialized.target
+Before=gnome-session.target
+
+Conflicts=gnome-session@gnome-login.target
+Conflicts=gnome-session@gnome-initial-setup.target
diff --git a/plugins/housekeeping/org.gnome.SettingsDaemon.Housekeeping.desktop.in 
b/plugins/housekeeping/org.gnome.SettingsDaemon.Housekeeping.desktop.in
index a557ff04..e13d3669 100644
--- a/plugins/housekeeping/org.gnome.SettingsDaemon.Housekeeping.desktop.in
+++ b/plugins/housekeeping/org.gnome.SettingsDaemon.Housekeeping.desktop.in
@@ -7,3 +7,4 @@ NoDisplay=true
 X-GNOME-Autostart-Phase=Initialization
 X-GNOME-Autostart-Notify=true
 X-GNOME-AutoRestart=true
+X-GNOME-HiddenUnderSystemd=@systemd_hidden@
diff --git a/plugins/keyboard/gsd-keyboard.service.in b/plugins/keyboard/gsd-keyboard.service.in
new file mode 100644
index 00000000..095468ee
--- /dev/null
+++ b/plugins/keyboard/gsd-keyboard.service.in
@@ -0,0 +1,18 @@
+[Unit]
+Description=GNOME Keyboard handling
+# Note that we do the shenanigans with having a target and a service solely
+# so that OnFailure is not called in case of a dependency failure.
+# See also https://github.com/systemd/systemd/issues/12352
+OnFailure=gnome-session-failed.target
+CollectMode=inactive-or-failed
+RefuseManualStart=true
+RefuseManualStop=true
+
+PartOf=gsd-keyboard.target
+After=gnome-session-initialized.target
+
+[Service]
+Type=dbus
+ExecStart=@libexecdir@/gsd-keyboard
+Restart=on-failure
+BusName=@plugin_dbus_name@
diff --git a/plugins/keyboard/gsd-keyboard.target.in b/plugins/keyboard/gsd-keyboard.target.in
new file mode 100644
index 00000000..f46cfce3
--- /dev/null
+++ b/plugins/keyboard/gsd-keyboard.target.in
@@ -0,0 +1,10 @@
+[Unit]
+Description=GNOME Keyboard handling
+
+BindsTo=gsd-keyboard.service
+After=gsd-keyboard.service
+
+Requisite=gnome-session-initialized.target
+After=gnome-session-initialized.target
+PartOf=gnome-session-initialized.target
+Before=gnome-session.target
diff --git a/plugins/keyboard/org.gnome.SettingsDaemon.Keyboard.desktop.in 
b/plugins/keyboard/org.gnome.SettingsDaemon.Keyboard.desktop.in
index 9cf0fbd4..1e9e063a 100644
--- a/plugins/keyboard/org.gnome.SettingsDaemon.Keyboard.desktop.in
+++ b/plugins/keyboard/org.gnome.SettingsDaemon.Keyboard.desktop.in
@@ -7,3 +7,4 @@ NoDisplay=true
 X-GNOME-Autostart-Phase=Initialization
 X-GNOME-Autostart-Notify=true
 X-GNOME-AutoRestart=true
+X-GNOME-HiddenUnderSystemd=@systemd_hidden@
diff --git a/plugins/media-keys/gsd-media-keys.service.in b/plugins/media-keys/gsd-media-keys.service.in
new file mode 100644
index 00000000..0b715b6b
--- /dev/null
+++ b/plugins/media-keys/gsd-media-keys.service.in
@@ -0,0 +1,18 @@
+[Unit]
+Description=GNOME Media keys handling
+# Note that we do the shenanigans with having a target and a service solely
+# so that OnFailure is not called in case of a dependency failure.
+# See also https://github.com/systemd/systemd/issues/12352
+OnFailure=gnome-session-failed.target
+CollectMode=inactive-or-failed
+RefuseManualStart=true
+RefuseManualStop=true
+
+PartOf=gsd-media-keys.target
+After=gnome-session-initialized.target
+
+[Service]
+Type=dbus
+ExecStart=@libexecdir@/gsd-media-keys
+Restart=on-failure
+BusName=@plugin_dbus_name@
diff --git a/plugins/media-keys/gsd-media-keys.target.in b/plugins/media-keys/gsd-media-keys.target.in
new file mode 100644
index 00000000..519738bb
--- /dev/null
+++ b/plugins/media-keys/gsd-media-keys.target.in
@@ -0,0 +1,10 @@
+[Unit]
+Description=GNOME Media keys handling
+
+BindsTo=gsd-media-keys.service
+After=gsd-media-keys.service
+
+Requisite=gnome-session-initialized.target
+After=gnome-session-initialized.target
+PartOf=gnome-session-initialized.target
+Before=gnome-session.target
diff --git a/plugins/media-keys/org.gnome.SettingsDaemon.MediaKeys.desktop.in 
b/plugins/media-keys/org.gnome.SettingsDaemon.MediaKeys.desktop.in
index de53c3f1..58f4cf4e 100644
--- a/plugins/media-keys/org.gnome.SettingsDaemon.MediaKeys.desktop.in
+++ b/plugins/media-keys/org.gnome.SettingsDaemon.MediaKeys.desktop.in
@@ -7,3 +7,4 @@ NoDisplay=true
 X-GNOME-Autostart-Phase=Initialization
 X-GNOME-Autostart-Notify=true
 X-GNOME-AutoRestart=true
+X-GNOME-HiddenUnderSystemd=@systemd_hidden@
diff --git a/plugins/meson-add-wants.sh b/plugins/meson-add-wants.sh
new file mode 100755
index 00000000..c33d1b4f
--- /dev/null
+++ b/plugins/meson-add-wants.sh
@@ -0,0 +1,30 @@
+#!/bin/sh
+set -eu
+
+# Script copied from systemd
+
+unitdir="$1"
+target="$2"
+unit="$3"
+
+case "$target" in
+    */?*) # a path, but not just a slash at the end
+        dir="${DESTDIR:-}${target}"
+        ;;
+    *)
+        dir="${DESTDIR:-}${unitdir}/${target}"
+        ;;
+esac
+
+unitpath="${DESTDIR:-}${unitdir}/${unit}"
+
+case "$target" in
+    */)
+        mkdir -vp -m 0755 "$dir"
+        ;;
+    *)
+        mkdir -vp -m 0755 "$(dirname "$dir")"
+        ;;
+esac
+
+ln -vfs --relative "$unitpath" "$dir"
diff --git a/plugins/meson.build b/plugins/meson.build
index 4f88668e..5177a8cb 100644
--- a/plugins/meson.build
+++ b/plugins/meson.build
@@ -1,6 +1,6 @@
 enabled_plugins = [
-  ['a11y-settings', 'A11ySettings'],
-  ['color', 'Color'],
+  ['a11y-settings', 'A11ySettings', ''],
+  ['color', 'Color', ''],
   ['datetime', 'Datetime'],
   ['dummy', ''],
   ['power', 'Power'],
@@ -18,7 +18,7 @@ if enable_smartcard
 endif
 
 if enable_wacom
-  enabled_plugins += [['wacom', 'Wacom']]
+  enabled_plugins += [['wacom', 'Wacom', 'wacom.target.wants/']]
 endif
 
 if enable_cups
@@ -29,33 +29,89 @@ if enable_rfkill
   enabled_plugins += [['rfkill', 'Rfkill']]
 endif
 
+plugin_install_extra_wants = {
+#  'dummy': ['required-started.target.wants/'],
+#  'xsettings': ['gnome-session-x11.target.wants/'],
+#  'wacom': ['wacom.target.wants/'],
+#  'smartcard': ['smartcard.target.wants/'],
+}
+
 plugins_conf = configuration_data()
 plugins_conf.set('libexecdir', gsd_libexecdir)
+plugins_conf.set('systemd_hidden', enable_systemd ? 'true' : 'false')
 
 plugins_deps = [libgsd_dep]
 
 plugins_cflags = ['-DGNOME_SETTINGS_LOCALEDIR="@0@"'.format(gsd_localedir)]
 
+enabled_plugins_file = []
+
 foreach plugin: [['common', '']] + enabled_plugins
   plugin_name = plugin[0]
-  plugin_dbus_name = plugin[1]
+  desktop = 'org.gnome.SettingsDaemon.@0@.desktop'.format(plugin[1])
+
+  if plugin[1] == '' # common or dummy
+    desktop_in_file = ''
+  else
+    desktop_in_file = files(join_paths(plugin_name, desktop + '.in'))
+  endif
+
+  enabled_plugins_file += [[plugin_name, plugin[1], desktop_in_file]]
+endforeach
+
+foreach plugin: enabled_plugins_file
+  plugin_name = plugin[0]
+  plugin_name_case = plugin[1]
+  plugin_dbus_name='org.gnome.SettingsDaemon.@0@'.format(plugin_name_case)
 
   cflags = [
     '-DG_LOG_DOMAIN="@0@-plugin"'.format(plugin_name),
     '-DPLUGIN_NAME="@0@"'.format(plugin_name),
-    '-DPLUGIN_DBUS_NAME="org.gnome.SettingsDaemon.@0@"'.format(plugin_dbus_name),
+    '-DPLUGIN_DBUS_NAME="@0@"'.format(plugin_dbus_name),
   ] + plugins_cflags
 
   if not ['common', 'dummy'].contains(plugin_name)
     desktop = 'org.gnome.SettingsDaemon.@0@.desktop'.format(plugin[1])
+    desktop_in_file = plugin[2]
+    user_target = 'gsd-@0@.target'.format(plugin_name)
+    user_service = 'gsd-@0@.service'.format(plugin_name)
+
+    unit_conf = configuration_data()
+    unit_conf.set('libexecdir', gsd_libexecdir)
+    unit_conf.set('plugin_dbus_name', plugin_dbus_name)
 
     configure_file(
-      input: join_paths(plugin_name, desktop + '.in'),
+      input: desktop_in_file,
       output: desktop,
       configuration: plugins_conf,
       install: true,
       install_dir: gsd_xdg_autostart
     )
+    if enable_systemd
+      configure_file(
+        input: join_paths(plugin_name, user_service + '.in'),
+        output: user_service,
+        configuration: unit_conf,
+        install: true,
+        install_dir: systemd_userunitdir
+     )
+      configure_file(
+        input: join_paths(plugin_name, user_target + '.in'),
+        output: user_target,
+        configuration: unit_conf,
+        install: true,
+        install_dir: systemd_userunitdir
+     )
+
+     wants = ['gnome-session-initialized.target.wants/']
+     if plugin_name in plugin_install_extra_wants
+       wants += [plugin_install_extra_wants[plugin_name]]
+     endif
+
+     foreach target: wants
+       meson.add_install_script('meson-add-wants.sh', systemd_userunitdir, target, user_target)
+     endforeach
+   endif
   endif
 
   subdir(plugin_name)
diff --git a/plugins/power/gsd-power.service.in b/plugins/power/gsd-power.service.in
new file mode 100644
index 00000000..c1c57add
--- /dev/null
+++ b/plugins/power/gsd-power.service.in
@@ -0,0 +1,18 @@
+[Unit]
+Description=GNOME Power management handling
+# Note that we do the shenanigans with having a target and a service solely
+# so that OnFailure is not called in case of a dependency failure.
+# See also https://github.com/systemd/systemd/issues/12352
+OnFailure=gnome-session-failed.target
+CollectMode=inactive-or-failed
+RefuseManualStart=true
+RefuseManualStop=true
+
+PartOf=gsd-power.target
+After=gnome-session-initialized.target
+
+[Service]
+Type=dbus
+ExecStart=@libexecdir@/gsd-power
+Restart=on-failure
+BusName=@plugin_dbus_name@
diff --git a/plugins/power/gsd-power.target.in b/plugins/power/gsd-power.target.in
new file mode 100644
index 00000000..bfc12811
--- /dev/null
+++ b/plugins/power/gsd-power.target.in
@@ -0,0 +1,10 @@
+[Unit]
+Description=GNOME Power management handling
+
+BindsTo=gsd-power.service
+After=gsd-power.service
+
+Requisite=gnome-session-initialized.target
+After=gnome-session-initialized.target
+PartOf=gnome-session-initialized.target
+Before=gnome-session.target
diff --git a/plugins/power/org.gnome.SettingsDaemon.Power.desktop.in 
b/plugins/power/org.gnome.SettingsDaemon.Power.desktop.in
index 82d1505d..81db05ff 100644
--- a/plugins/power/org.gnome.SettingsDaemon.Power.desktop.in
+++ b/plugins/power/org.gnome.SettingsDaemon.Power.desktop.in
@@ -7,3 +7,4 @@ NoDisplay=true
 X-GNOME-Autostart-Phase=Initialization
 X-GNOME-Autostart-Notify=true
 X-GNOME-AutoRestart=true
+X-GNOME-HiddenUnderSystemd=@systemd_hidden@
diff --git a/plugins/print-notifications/gsd-print-notifications.service.in 
b/plugins/print-notifications/gsd-print-notifications.service.in
new file mode 100644
index 00000000..6504c69b
--- /dev/null
+++ b/plugins/print-notifications/gsd-print-notifications.service.in
@@ -0,0 +1,18 @@
+[Unit]
+Description=GNOME Printer notifications
+# Note that we do the shenanigans with having a target and a service solely
+# so that OnFailure is not called in case of a dependency failure.
+# See also https://github.com/systemd/systemd/issues/12352
+OnFailure=gnome-session-failed.target
+CollectMode=inactive-or-failed
+RefuseManualStart=true
+RefuseManualStop=true
+
+PartOf=gsd-print-notifications.target
+After=gnome-session-initialized.target
+
+[Service]
+Type=dbus
+ExecStart=@libexecdir@/gsd-print-notifications
+Restart=on-failure
+BusName=@plugin_dbus_name@
diff --git a/plugins/print-notifications/gsd-print-notifications.target.in 
b/plugins/print-notifications/gsd-print-notifications.target.in
new file mode 100644
index 00000000..90e63492
--- /dev/null
+++ b/plugins/print-notifications/gsd-print-notifications.target.in
@@ -0,0 +1,10 @@
+[Unit]
+Description=GNOME Printer notifications
+
+BindsTo=gsd-print-notifications.service
+After=gsd-print-notifications.service
+
+Requisite=gnome-session-initialized.target
+After=gnome-session-initialized.target
+PartOf=gnome-session-initialized.target
+Before=gnome-session.target
diff --git a/plugins/print-notifications/org.gnome.SettingsDaemon.PrintNotifications.desktop.in 
b/plugins/print-notifications/org.gnome.SettingsDaemon.PrintNotifications.desktop.in
index bbcd6abb..146cc16e 100644
--- a/plugins/print-notifications/org.gnome.SettingsDaemon.PrintNotifications.desktop.in
+++ b/plugins/print-notifications/org.gnome.SettingsDaemon.PrintNotifications.desktop.in
@@ -7,3 +7,4 @@ NoDisplay=true
 X-GNOME-Autostart-Phase=Initialization
 X-GNOME-Autostart-Notify=true
 X-GNOME-AutoRestart=true
+X-GNOME-HiddenUnderSystemd=@systemd_hidden@
diff --git a/plugins/rfkill/gsd-rfkill.service.in b/plugins/rfkill/gsd-rfkill.service.in
new file mode 100644
index 00000000..3dbb5150
--- /dev/null
+++ b/plugins/rfkill/gsd-rfkill.service.in
@@ -0,0 +1,18 @@
+[Unit]
+Description=GNOME RFKill handling
+# Note that we do the shenanigans with having a target and a service solely
+# so that OnFailure is not called in case of a dependency failure.
+# See also https://github.com/systemd/systemd/issues/12352
+OnFailure=gnome-session-failed.target
+CollectMode=inactive-or-failed
+RefuseManualStart=true
+RefuseManualStop=true
+
+PartOf=gsd-rfkill.target
+After=gnome-session-initialized.target
+
+[Service]
+Type=dbus
+ExecStart=@libexecdir@/gsd-rfkill
+Restart=on-failure
+BusName=@plugin_dbus_name@
diff --git a/plugins/rfkill/gsd-rfkill.target.in b/plugins/rfkill/gsd-rfkill.target.in
new file mode 100644
index 00000000..8fca6efe
--- /dev/null
+++ b/plugins/rfkill/gsd-rfkill.target.in
@@ -0,0 +1,10 @@
+[Unit]
+Description=GNOME RFKill handling
+
+BindsTo=gsd-rfkill.service
+After=gsd-rfkill.service
+
+Requisite=gnome-session-initialized.target
+After=gnome-session-initialized.target
+PartOf=gnome-session-initialized.target
+Before=gnome-session.target
diff --git a/plugins/rfkill/org.gnome.SettingsDaemon.Rfkill.desktop.in 
b/plugins/rfkill/org.gnome.SettingsDaemon.Rfkill.desktop.in
index baa845b6..2607dd00 100644
--- a/plugins/rfkill/org.gnome.SettingsDaemon.Rfkill.desktop.in
+++ b/plugins/rfkill/org.gnome.SettingsDaemon.Rfkill.desktop.in
@@ -7,3 +7,4 @@ NoDisplay=true
 X-GNOME-Autostart-Phase=Initialization
 X-GNOME-Autostart-Notify=true
 X-GNOME-AutoRestart=true
+X-GNOME-HiddenUnderSystemd=@systemd_hidden@
diff --git a/plugins/screensaver-proxy/gsd-screensaver-proxy.service.in 
b/plugins/screensaver-proxy/gsd-screensaver-proxy.service.in
new file mode 100644
index 00000000..bd90ced6
--- /dev/null
+++ b/plugins/screensaver-proxy/gsd-screensaver-proxy.service.in
@@ -0,0 +1,18 @@
+[Unit]
+Description=GNOME Freedesktop screensaver handling
+# Note that we do the shenanigans with having a target and a service solely
+# so that OnFailure is not called in case of a dependency failure.
+# See also https://github.com/systemd/systemd/issues/12352
+OnFailure=gnome-session-failed.target
+CollectMode=inactive-or-failed
+RefuseManualStart=true
+RefuseManualStop=true
+
+PartOf=gsd-screensaver-proxy.target
+After=gnome-session-initialized.target
+
+[Service]
+Type=dbus
+ExecStart=@libexecdir@/gsd-screensaver-proxy
+Restart=on-failure
+BusName=@plugin_dbus_name@
diff --git a/plugins/screensaver-proxy/gsd-screensaver-proxy.target.in 
b/plugins/screensaver-proxy/gsd-screensaver-proxy.target.in
new file mode 100644
index 00000000..71a604b7
--- /dev/null
+++ b/plugins/screensaver-proxy/gsd-screensaver-proxy.target.in
@@ -0,0 +1,13 @@
+[Unit]
+Description=GNOME Freedesktop screensaver handling
+
+BindsTo=gsd-screensaver-proxy.service
+After=gsd-screensaver-proxy.service
+
+Requisite=gnome-session-initialized.target
+After=gnome-session-initialized.target
+PartOf=gnome-session-initialized.target
+Before=gnome-session.target
+
+Conflicts=gnome-session@gnome-login.target
+Conflicts=gnome-session@gnome-initial-setup.target
diff --git a/plugins/screensaver-proxy/org.gnome.SettingsDaemon.ScreensaverProxy.desktop.in 
b/plugins/screensaver-proxy/org.gnome.SettingsDaemon.ScreensaverProxy.desktop.in
index 43822fb4..97a339f0 100644
--- a/plugins/screensaver-proxy/org.gnome.SettingsDaemon.ScreensaverProxy.desktop.in
+++ b/plugins/screensaver-proxy/org.gnome.SettingsDaemon.ScreensaverProxy.desktop.in
@@ -7,3 +7,4 @@ NoDisplay=true
 X-GNOME-Autostart-Phase=Initialization
 X-GNOME-Autostart-Notify=true
 X-GNOME-AutoRestart=true
+X-GNOME-HiddenUnderSystemd=@systemd_hidden@
diff --git a/plugins/sharing/gsd-sharing.service.in b/plugins/sharing/gsd-sharing.service.in
new file mode 100644
index 00000000..f4572482
--- /dev/null
+++ b/plugins/sharing/gsd-sharing.service.in
@@ -0,0 +1,18 @@
+[Unit]
+Description=GNOME Sharing handling
+# Note that we do the shenanigans with having a target and a service solely
+# so that OnFailure is not called in case of a dependency failure.
+# See also https://github.com/systemd/systemd/issues/12352
+OnFailure=gnome-session-failed.target
+CollectMode=inactive-or-failed
+RefuseManualStart=true
+RefuseManualStop=true
+
+PartOf=gsd-sharing.target
+After=gnome-session-initialized.target
+
+[Service]
+Type=dbus
+ExecStart=@libexecdir@/gsd-sharing
+Restart=on-failure
+BusName=@plugin_dbus_name@
diff --git a/plugins/sharing/gsd-sharing.target.in b/plugins/sharing/gsd-sharing.target.in
new file mode 100644
index 00000000..f33f0620
--- /dev/null
+++ b/plugins/sharing/gsd-sharing.target.in
@@ -0,0 +1,13 @@
+[Unit]
+Description=GNOME Sharing handling
+
+BindsTo=gsd-sharing.service
+After=gsd-sharing.service
+
+Requisite=gnome-session-initialized.target
+After=gnome-session-initialized.target
+PartOf=gnome-session-initialized.target
+Before=gnome-session.target
+
+Conflicts=gnome-session@gnome-login.target
+Conflicts=gnome-session@gnome-initial-setup.target
diff --git a/plugins/sharing/org.gnome.SettingsDaemon.Sharing.desktop.in 
b/plugins/sharing/org.gnome.SettingsDaemon.Sharing.desktop.in
index 891ba205..dd5dc72b 100644
--- a/plugins/sharing/org.gnome.SettingsDaemon.Sharing.desktop.in
+++ b/plugins/sharing/org.gnome.SettingsDaemon.Sharing.desktop.in
@@ -7,3 +7,4 @@ NoDisplay=true
 X-GNOME-Autostart-Phase=Initialization
 X-GNOME-Autostart-Notify=true
 X-GNOME-AutoRestart=true
+X-GNOME-HiddenUnderSystemd=@systemd_hidden@
diff --git a/plugins/smartcard/gsd-smartcard.service.in b/plugins/smartcard/gsd-smartcard.service.in
new file mode 100644
index 00000000..e8a5a6a0
--- /dev/null
+++ b/plugins/smartcard/gsd-smartcard.service.in
@@ -0,0 +1,18 @@
+[Unit]
+Description=GNOME Smartcard handling
+# Note that we do the shenanigans with having a target and a service solely
+# so that OnFailure is not called in case of a dependency failure.
+# See also https://github.com/systemd/systemd/issues/12352
+OnFailure=gnome-session-failed.target
+CollectMode=inactive-or-failed
+RefuseManualStart=true
+RefuseManualStop=true
+
+PartOf=gsd-smartcard.target
+After=gnome-session-initialized.target
+
+[Service]
+Type=dbus
+ExecStart=@libexecdir@/gsd-smartcard
+Restart=on-failure
+BusName=@plugin_dbus_name@
diff --git a/plugins/smartcard/gsd-smartcard.target.in b/plugins/smartcard/gsd-smartcard.target.in
new file mode 100644
index 00000000..0853e311
--- /dev/null
+++ b/plugins/smartcard/gsd-smartcard.target.in
@@ -0,0 +1,17 @@
+[Unit]
+Description=GNOME Smartcard handling
+
+BindsTo=gsd-smartcard.service
+After=gsd-smartcard.service
+
+Requisite=gnome-session-initialized.target
+After=gnome-session-initialized.target
+PartOf=gnome-session-initialized.target
+Before=gnome-session.target
+
+# Start when smartcard hardware is present (requires systemd v234)
+# https://github.com/systemd/systemd/issues/12330
+#Requisite=smartcard.target
+#After=smartcard.target
+#PartOf=smartcard.target
+# When done, also add the target to the meson.build file!
diff --git a/plugins/smartcard/org.gnome.SettingsDaemon.Smartcard.desktop.in 
b/plugins/smartcard/org.gnome.SettingsDaemon.Smartcard.desktop.in
index 71d058c2..9c5f3458 100644
--- a/plugins/smartcard/org.gnome.SettingsDaemon.Smartcard.desktop.in
+++ b/plugins/smartcard/org.gnome.SettingsDaemon.Smartcard.desktop.in
@@ -7,3 +7,4 @@ NoDisplay=true
 X-GNOME-Autostart-Phase=Initialization
 X-GNOME-Autostart-Notify=true
 X-GNOME-AutoRestart=true
+X-GNOME-HiddenUnderSystemd=@systemd_hidden@
diff --git a/plugins/sound/gsd-sound.service.in b/plugins/sound/gsd-sound.service.in
new file mode 100644
index 00000000..2babe33d
--- /dev/null
+++ b/plugins/sound/gsd-sound.service.in
@@ -0,0 +1,18 @@
+[Unit]
+Description=GNOME Sound sample caching handling
+# Note that we do the shenanigans with having a target and a service solely
+# so that OnFailure is not called in case of a dependency failure.
+# See also https://github.com/systemd/systemd/issues/12352
+OnFailure=gnome-session-failed.target
+CollectMode=inactive-or-failed
+RefuseManualStart=true
+RefuseManualStop=true
+
+PartOf=gsd-sound.target
+After=gnome-session-initialized.target
+
+[Service]
+Type=dbus
+ExecStart=@libexecdir@/gsd-sound
+Restart=on-failure
+BusName=@plugin_dbus_name@
diff --git a/plugins/sound/gsd-sound.target.in b/plugins/sound/gsd-sound.target.in
new file mode 100644
index 00000000..2f18d163
--- /dev/null
+++ b/plugins/sound/gsd-sound.target.in
@@ -0,0 +1,14 @@
+[Unit]
+Description=GNOME Sound sample caching handling
+
+BindsTo=gsd-sound.service
+After=gsd-sound.service
+
+Requisite=gnome-session-initialized.target
+After=gnome-session-initialized.target
+PartOf=gnome-session-initialized.target
+Before=gnome-session.target
+
+Requires=pulseaudio.service
+After=pulseaudio.service
+# Keep running when pulseaudio.service stops
diff --git a/plugins/sound/org.gnome.SettingsDaemon.Sound.desktop.in 
b/plugins/sound/org.gnome.SettingsDaemon.Sound.desktop.in
index 2048b01b..4701a2a0 100644
--- a/plugins/sound/org.gnome.SettingsDaemon.Sound.desktop.in
+++ b/plugins/sound/org.gnome.SettingsDaemon.Sound.desktop.in
@@ -7,3 +7,4 @@ NoDisplay=true
 X-GNOME-Autostart-Phase=Initialization
 X-GNOME-Autostart-Notify=true
 X-GNOME-AutoRestart=true
+X-GNOME-HiddenUnderSystemd=@systemd_hidden@
diff --git a/plugins/wacom/gsd-wacom.service.in b/plugins/wacom/gsd-wacom.service.in
new file mode 100644
index 00000000..56cf0f7e
--- /dev/null
+++ b/plugins/wacom/gsd-wacom.service.in
@@ -0,0 +1,18 @@
+[Unit]
+Description=GNOME Wacom handling
+# Note that we do the shenanigans with having a target and a service solely
+# so that OnFailure is not called in case of a dependency failure.
+# See also https://github.com/systemd/systemd/issues/12352
+OnFailure=gnome-session-failed.target
+CollectMode=inactive-or-failed
+RefuseManualStart=true
+RefuseManualStop=true
+
+PartOf=gsd-wacom.target
+After=gnome-session-initialized.target
+
+[Service]
+Type=dbus
+ExecStart=@libexecdir@/gsd-wacom
+Restart=on-failure
+BusName=@plugin_dbus_name@
diff --git a/plugins/wacom/gsd-wacom.target.in b/plugins/wacom/gsd-wacom.target.in
new file mode 100644
index 00000000..051dec72
--- /dev/null
+++ b/plugins/wacom/gsd-wacom.target.in
@@ -0,0 +1,16 @@
+[Unit]
+Description=GNOME Wacom handling
+
+BindsTo=gsd-wacom.service
+After=gsd-wacom.service
+
+Requisite=gnome-session-initialized.target
+After=gnome-session-initialized.target
+PartOf=gnome-session-initialized.target
+Before=gnome-session.target
+
+# Use the following once wacom.target or similar exists
+#Requisite=wacom.target
+#After=wacom.target
+#PartOf=wacom.target
+# When done, also add the target to the meson.build file!
diff --git a/plugins/wacom/org.gnome.SettingsDaemon.Wacom.desktop.in 
b/plugins/wacom/org.gnome.SettingsDaemon.Wacom.desktop.in
index efa5bf00..c10b461c 100644
--- a/plugins/wacom/org.gnome.SettingsDaemon.Wacom.desktop.in
+++ b/plugins/wacom/org.gnome.SettingsDaemon.Wacom.desktop.in
@@ -7,3 +7,4 @@ NoDisplay=true
 X-GNOME-Autostart-Phase=Initialization
 X-GNOME-Autostart-Notify=true
 X-GNOME-AutoRestart=true
+X-GNOME-HiddenUnderSystemd=@systemd_hidden@
diff --git a/plugins/xsettings/gsd-xsettings.service.in b/plugins/xsettings/gsd-xsettings.service.in
new file mode 100644
index 00000000..e644c541
--- /dev/null
+++ b/plugins/xsettings/gsd-xsettings.service.in
@@ -0,0 +1,18 @@
+[Unit]
+Description=GNOME XSettings
+# Note that we do the shenanigans with having a target and a service solely
+# so that OnFailure is not called in case of a dependency failure.
+# See also https://github.com/systemd/systemd/issues/12352
+OnFailure=gnome-session-failed.target
+CollectMode=inactive-or-failed
+RefuseManualStart=true
+RefuseManualStop=true
+
+PartOf=gsd-xsettings.target
+After=gnome-session-initialized.target
+
+[Service]
+Type=dbus
+ExecStart=@libexecdir@/gsd-xsettings
+Restart=on-failure
+BusName=@plugin_dbus_name@
diff --git a/plugins/xsettings/gsd-xsettings.target.in b/plugins/xsettings/gsd-xsettings.target.in
new file mode 100644
index 00000000..019c5719
--- /dev/null
+++ b/plugins/xsettings/gsd-xsettings.target.in
@@ -0,0 +1,16 @@
+[Unit]
+Description=GNOME XSettings
+
+BindsTo=gsd-xsettings.service
+After=gsd-xsettings.service
+
+Requisite=gnome-session-initialized.target
+After=gnome-session-initialized.target
+PartOf=gnome-session-initialized.target
+Before=gnome-session.target
+
+# Use something similar once appropriate an appropriate target exists for X11
+#Requisite=gnome-session-x11.target
+#After=gnome-session-x11.target
+#PartOf=gnome-session-x11.target
+# When done, also add the target to the meson.build file!
diff --git a/plugins/xsettings/org.gnome.SettingsDaemon.XSettings.desktop.in 
b/plugins/xsettings/org.gnome.SettingsDaemon.XSettings.desktop.in
index 249fafd7..59086a78 100644
--- a/plugins/xsettings/org.gnome.SettingsDaemon.XSettings.desktop.in
+++ b/plugins/xsettings/org.gnome.SettingsDaemon.XSettings.desktop.in
@@ -7,3 +7,4 @@ NoDisplay=true
 X-GNOME-Autostart-Phase=Initialization
 X-GNOME-Autostart-Notify=true
 X-GNOME-AutoRestart=true
+X-GNOME-HiddenUnderSystemd=@systemd_hidden@
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