diff --git a/nixos/i3/polybar.ini b/nixos/i3/polybar.ini
index 0433485..b440550 100644
--- a/nixos/i3/polybar.ini
+++ b/nixos/i3/polybar.ini
@@ -1,3 +1,5 @@
+; note: we can get x resources like so:
+; https://github.com/polybar/polybar/wiki/Configuration#referencing-values
 [bar/top]
 enable-ipc = true