feat: add low battery indicator

profiles/common/nixos/default.nix

@@ -38,6 +38,7 @@ _:
     # ./safeeyes.nix
     ./distrobox.nix
     ./lid.nix
+    ./lowbattery.nix
   ];
 
   nixpkgs.config.permittedInsecurePackages = [

profiles/common/nixos/lowbattery.nix

@@ -0,0 +1,26 @@
+{ pkgs, lib, ... }:
+{
+  systemd.user.services."battery-low" = {
+    enable = true;
+    description = "Notify user if battery is below 10%";
+    partOf = [ "graphical-session.target" ];
+    wantedBy = [ "graphical-session.target" ];
+    serviceConfig = {
+      Type = "simple";
+      ExecStart = pkgs.writeShellScript "battery-low-notification"
+        ''
+          if (( 10 >= $(${lib.getExe pkgs.acpi} -b | head -n 1 | ${lib.getExe pkgs.ripgrep} -o "\d+%" | ${lib.getExe pkgs.ripgrep} -o "\d+")));
+          then ${lib.getExe pkgs.libnotify} --urgency=critical "low battery" "$(${lib.getExe pkgs.acpi} -b | head -n 1 | ${lib.getExe pkgs.ripgrep} -o "\d+%")";
+          fi;
+        '';
+    };
+  };
+  systemd.user.timers."battery-low" = {
+    wantedBy = [ "timers.target" ];
+    timerConfig = {
+      # Every Minute
+      OnCalendar = "*-*-* *:*:00";
+      Unit = "battery-low.service";
+    };
+  };
+}

profiles/common/nixos/packages.nix

@@ -26,8 +26,12 @@
     # secure boot
     sbctl
 
+    # nix package database
     nix-index
 
+    # proc info
+    acpi
+
     # better make for general tasks
     just