hardware/module.nix: enable irqbalance

This makes the system responsive even under load.

modules/system/boot/module.nix

@@ -25,6 +25,7 @@ in {
       }
     ];
     boot = {
+      tmp.useTmpfs = true;
       initrd = {
         verbose = true;
         systemd.enable = true;

modules/system/hardware/module.nix

@@ -1 +1,5 @@
-_: {imports = [./bluetooth.nix ./keyboard ./graphics.nix];}
+_: {
+  imports = [./bluetooth.nix ./keyboard ./graphics.nix];
+
+  services.irqbalance.enable = true;
+}

modules/system/hardware/ram/module.nix

@@ -0,0 +1,6 @@
+_: {
+  zramSwap = {
+    enable = true;
+    algorithm = "zstd";
+  };
+}