feat(homelab): update network and swap configuration

hosts/miku-homelab/default.nix

@@ -37,7 +37,7 @@
     hostName = "miku-homelab";
     useNetworkManager = true;
     staticIp = {
-      interface = "enp6s0";
+      interface = "enp9s0";
       address = "10.1.1.21";
       prefixLength = 24;
       gateway = "10.1.1.1";
@@ -111,7 +111,35 @@
     plymouth.enable = true;
     initrd.kernelModules = [ "amdgpu" ];
     kernelPackages = pkgs.linuxPackages_latest;
-    kernelParams = [ "quiet" "splash" "boot.shell_on_fail" "loglevel=3" "iommu=pt" ];
+    kernelParams = [
+      "quiet"
+      "splash"
+      "boot.shell_on_fail"
+      "loglevel=3"
+      "iommu=pt"
+      "zswap.enabled=1"
+      "zswap.compressor=zstd"
+      "zswap.max_pool_percent=20"
+      "zswap.zpool=zsmalloc"
+    ];
+  };
+
+  swapDevices = [
+    {
+      device = "/dev/disk/by-label/optane-swap-1";
+      priority = 50;
+    }
+    {
+      device = "/dev/disk/by-label/optane-swap-2";
+      priority = 50;
+    }
+  ];
+
+  zramSwap = {
+    enable = true;
+    algorithm = "zstd";
+    memoryPercent = 50;
+    priority = 100;
   };
 
   time.timeZone = "America/Argentina/Buenos_Aires";
@@ -147,7 +175,7 @@
     wantedBy = [ "multi-user.target" ];
     serviceConfig = {
       Type = "oneshot";
-      ExecStart = "${pkgs.ethtool}/bin/ethtool -K enp6s0 rx-udp-gro-forwarding on rx-gro-list on";
+      ExecStart = "${pkgs.ethtool}/bin/ethtool -K enp9s0 rx-udp-gro-forwarding on rx-gro-list on";
       RemainAfterExit = true;
     };
   };
@@ -157,12 +185,5 @@
     experimental-features = [ "nix-command" "flakes" ];
   };
 
-  zramSwap = {
-    enable = true;
-    algorithm = "zstd";
-    memoryPercent = 50;
-    priority = 100;
-  };
-
   system.stateVersion = "25.11";
 }