Add note when using a package update notifier

content/docs/computer/maintenance-peripherals.md

@@ -76,6 +76,22 @@ To force a re-run of the service use:
 sudo systemctl --now start pkgfile-update.service
 ```
 
+{{< callout type="info" >}}
+  As I will be using a [#Package update notifier](#package-update-notifier), I can remove pkgfile and its dependecies using:
+
+  ```bash
+  sudo pacman -Rns pkgfile
+  ```
+
+  Notice that its cache directory `/var/cache/pkgfile` is not removed automatically. You must run:
+
+  ```bash
+  sudo rm -rf /var/cache/pkgfile
+  ```
+
+  to remove it.
+{{< /callout >}}
+
 ### Backup
 
 Most important is to maintain a backup[^2]  of your system. Filesystem level