#2 Added systemd

README.md

@@ -47,9 +47,36 @@ reddit-wallpaper /backdrop/screen0/monitorHDMI-A-0/workspace0/last-image awww
 
 *Coming soon*
 
-## Automation
+## Systemd
 
-**Coming soon**
+Copy the service file to your systemd configuration directory: 
+
+```sh
+sudo cp /usr/local/src/reddit-wallpaper/reddit-wallpaper@.service /etc/systemd/system
+sudo systemctl daemon-reload
+```
+
+Now you can run the service with `sudo systemctl start reddit-wallpaper@awww`.  You can also configure systemd timers.  For example, you can use this timer to set the wallpaper to the top post on r/spaceporn every night at 8pm: 
+
+```
+[Unit]
+Description=Change desktop wallpaper to r/spaceporn's top evenings at 8pm
+
+[Timer]
+OnCalendar=20:00
+Unit=reddit-wallpaper@spaceporn.service
+
+[Install]
+WantedBy=multi-user.target
+```
+
+Save that to `/etc/systemd/system/space-wallpaper.timer` and then run:
+
+```
+sudo systemctl daemon-reload
+sudo systemctl start space-wallpaper.timer
+sudo systemctl enable space-wallpaper.timer
+```
 
 ## License
 

reddit-wallpaper@.service

@@ -0,0 +1,6 @@
+[Unit]
+Description=Set desktop wallpaper to %i reddit images
+
+[Service]
+Type=oneshot
+ExecStart=/usr/local/bin/reddit-wallpaper /backdrop/screen0/monitorHDMI-A-0/workspace0/last-image %i