add keyboard-state indicator in waybar

home/desktop/sway/__waybar.nix

@@ -1,4 +1,9 @@
-{pkgs, ...}: {
+{
+  pkgs,
+  lib,
+  self,
+  ...
+}: {
   programs.waybar = {
     enable = true;
     package = pkgs.waybar.overrideAttrs (final: prev: {
@@ -16,6 +21,7 @@
           "sway/window"
         ];
         modules-right = [
+          "custom/keyboard-state"
           "tray"
           "clock"
         ];
@@ -25,6 +31,11 @@
         "sway/window" = {
           max-length = 80;
         };
+        "custom/keyboard-state" = {
+          return-type = "json";
+          exec = "${lib.getExe self.packages.${pkgs.system}.keyboard-state}";
+          restart-interval = "60";
+        };
         clock = {
           format = "{:%V|%d %a %H:%M}";
           tooltip-format = "<big>{:%a %Y-%m-%d %H:%M}</big>\n<small>{calendar}</small>";