diff --git a/content/notes/archlinux/index.md b/content/notes/archlinux/index.md
index 61ab4ec..defad5d 100644
--- a/content/notes/archlinux/index.md
+++ b/content/notes/archlinux/index.md
@@ -1,7 +1,7 @@
 ---
 title: Archlinux
 date: 2023-11-29T20:33:48+0100
-lastmod: 2024-05-04T12:25:43+0000
+lastmod: 2024-05-09T12:29:13+0000
 tags:
   - archlinux
 
@@ -17,6 +17,12 @@ feed_exclude: true
 
 ---
 
+## Systemd Unit files
+
+A nice and informative article about unit files.
+
+<https://www.digitalocean.com/community/tutorials/understanding-systemd-units-and-unit-files>
+
 ## Predictable network interfaces
 
 Get back the "old" interface names like `eth0` or `wlan0` with