From babec6336f50a9d11f73975d737f73fa690b90ef Mon Sep 17 00:00:00 2001
From: Alexander Heldt <me@alexanderheldt.se>
Date: Tue, 1 Sep 2026 10:06:38 +0200
Subject: [PATCH] waybar: Pin battery module to BAT0

Bluetooth HID devices (e.g. a mouse) appearing as power_supply
entries in sysfs make waybar's Battery::refreshBatteries() throw
an uncaught exception and abort. Restricting to BAT0 avoids
enumerating those devices.
---
 hosts/pinwheel/modules/waybar/default.nix | 1 +
 1 file changed, 1 insertion(+)

diff --git a/hosts/pinwheel/modules/waybar/default.nix b/hosts/pinwheel/modules/waybar/default.nix
index 690995b..1dd6b36 100644
--- a/hosts/pinwheel/modules/waybar/default.nix
+++ b/hosts/pinwheel/modules/waybar/default.nix
@@ -208,6 +208,7 @@ in
           };
 
           battery = {
+            "bat" = "BAT0";
             "interval" = 60;
             "format" = "<span font='10' rise='1000'>{icon}</span> {capacity}%";
             "format-time" = "{H}h {M}min";