nixy: add suspend.nix module

flake.nix

@@ -64,9 +64,10 @@
         system = "x86_64-linux";
         modules = [
           {_module.args = inputs;}
+          ./common/packages.nix
+          ./common/suspend.nix
           ./nixy/configuration.nix
           ./nixy/hardware-configuration.nix
-          ./common/packages.nix
           sops-nix.nixosModules.sops
           home-manager.nixosModules.home-manager
           {

nixy/configuration.nix

@@ -173,7 +173,7 @@
     };
 
     xserver = {
-      enable = true;
+      enable = false;
       dpi = 144;
       libinput.enable = true;
       desktopManager.xterm.enable = false;
@@ -182,7 +182,7 @@
         startx.enable = true;
         defaultSession = "none+i3";
       };
-      windowManager.i3.enable = true;
+      windowManager.i3.enable = false;
     };
 
     udev = {
@@ -201,6 +201,12 @@
       enable = true;
     };
 
+    batteryNotifier = {
+      enable = true;
+      notifyCapacity = 20;
+      suspendCapacity = 10;
+    };
+
     actkbd = {
       enable = true;
       bindings = [