diff --git a/modules/nix/network/default.nix b/modules/nix/network/default.nix
new file mode 100644
index 0000000..4783c4c
--- /dev/null
+++ b/modules/nix/network/default.nix
@@ -0,0 +1,23 @@
+{
+  host,
+  lib,
+  ...
+}:
+{
+  networking = {
+    hostName = host;
+
+    nameservers = lib.mkDefault [
+      "1.1.1.1"
+      "1.0.0.1"
+      "10.50.80.53"
+      "10.50.80.54"
+    ];
+  };
+
+  services.resolved.enable = lib.mkDefault false;
+
+  security.pki.certificateFiles = [
+    ./root_ca.crt
+  ];
+}
diff --git a/modules/nix/network/root_ca.crt b/modules/nix/network/root_ca.crt
new file mode 100644
index 0000000..5985efb
--- /dev/null
+++ b/modules/nix/network/root_ca.crt
@@ -0,0 +1,13 @@
+-----BEGIN CERTIFICATE-----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+-----END CERTIFICATE-----
+
diff --git a/modules/nix/network/wifi.nix b/modules/nix/network/wifi.nix
new file mode 100644
index 0000000..dd6281c
--- /dev/null
+++ b/modules/nix/network/wifi.nix
@@ -0,0 +1,24 @@
+_: {
+  networking = {
+    networkmanager = {
+      enable = true;
+
+      dns = "none";
+      wifi.powersave = false;
+      wifi.backend = "wpa_supplicant";
+      settings = {
+        "device"."wifi.scan-rand-mac-address" = "no";
+        "connection"."wifi.cloned-mac-address" = "permanent";
+      };
+    };
+    wireless.iwd.enable = false;
+  };
+
+  boot.extraModprobeConfig = ''
+    options cfg80211 ieee80211_regdom=JP
+    options iwlwifi power_save=0
+    options iwlwifi uapsd_disable=1
+  '';
+
+  programs.nm-applet.enable = true;
+}
diff --git a/modules/nix/user.nix b/modules/nix/user.nix
new file mode 100644
index 0000000..ee24a2c
--- /dev/null
+++ b/modules/nix/user.nix
@@ -0,0 +1,21 @@
+{
+  userName,
+  inputs,
+  ...
+}:
+{
+  imports = [ inputs.home-manager.nixosModules.home-manager ];
+
+  home-manager = {
+    useUserPackages = true;
+    useGlobalPkgs = true;
+    backupFileExtension = "backup";
+    users.moons = {
+      home = {
+        username = userName;
+        homeDirectory = "/home/${userName}";
+        stateVersion = "26.05";
+      };
+    };
+  };
+}
diff --git a/profiles/base.nix b/profiles/base.nix
index 19a03c7..c22cfec 100644
--- a/profiles/base.nix
+++ b/profiles/base.nix
@@ -5,6 +5,9 @@
     ../modules/nix/caches.nix
     ../modules/nix/gc.nix
     ../modules/nix/hardware
+    ../modules/nix/user.nix
+    ../modules/nix/network
+  ];
+  home-manager.users.${userName}.imports = [
   ];
-  home-manager.users.${userName}.imports = [ ];
 }
diff --git a/profiles/laptop.nix b/profiles/laptop.nix
index dcf88a0..466a1ef 100644
--- a/profiles/laptop.nix
+++ b/profiles/laptop.nix
@@ -4,6 +4,7 @@
     ./gui.nix
     ../modules/nix/bluetooth.nix
     ../modules/nix/fingerprint.nix
+    ../modules/nix/network/wifi.nix
   ];
   home-manager.users.${userName}.imports = [ ];
 }