diff --git a/POSTINSTALL.md b/POSTINSTALL.md
index e251efb..20e8775 100644
--- a/POSTINSTALL.md
+++ b/POSTINSTALL.md
@@ -4,8 +4,18 @@
 apt install git zsh inotify-tools borgbackup
 ```
 
+# Increase Inotify watchers
+
+See: https://github.com/guard/listen/wiki/Increasing-the-amount-of-inotify-watchers
+
+```
+echo fs.inotify.max_user_watches=524288 | sudo tee -a /etc/sysctl.conf && sudo sysctl -p
+```
+
 # Setup SSH 
 
+See: https://wiki.archlinux.org/index.php/SSH_keys#Ed25519
+
 ```
 ssh-keygen -o -a 100 -t ed25519 -f ~/.ssh/id_ed25519 -C "johnnie@posteo.de"
 ```
\ No newline at end of file