update last post

content/posts/2023-05-28-backlight-control-on-a-lenovo-x1-carbon/index.md

@@ -52,6 +52,13 @@ case $( sysctl -n hw.acpi.acline ) in
 esac
 ```
 
+The script is run by a line in my personal cron table. A little delay (up to
+a minute) is expected.
+
+```crontab
+* * * * * ~/bin/powersave.sh
+```
+
 ## xbl
 
 A script to modify different backlight settings depending on the connected