diff --git a/etc/nixos/configuration.nix b/etc/nixos/configuration.nix
new file mode 100644
index 0000000..23ab08c
--- /dev/null
+++ b/etc/nixos/configuration.nix
@@ -0,0 +1,116 @@
+{ config, pkgs, ... }:
+
+{
+  imports =
+    [ 
+      ./hardware-configuration.nix
+    ];
+
+  boot.loader.systemd-boot.enable = true;
+  boot.loader.efi.canTouchEfiVariables = true;
+
+  boot.kernelPackages = pkgs.linuxPackages_6_1;
+
+  boot.initrd.luks.devices."luks-62a9c28b-959c-480e-bf53-e87b791b569d".device = "/dev/disk/by-uuid/62a9c28b-959c-480e-bf53-e87b791b569d";
+  networking.hostName = "core";
+  networking.enableIPv6 = false;
+
+  networking.networkmanager.enable = true;
+
+  time.timeZone = "Asia/Tehran";
+
+  i18n.defaultLocale = "en_US.UTF-8";
+
+  services.xserver.enable = true;
+
+  services.displayManager.sddm.enable = true;
+  services.desktopManager.plasma6.enable = true;
+
+  services.xserver.xkb = {
+    layout = "us";
+    variant = "";
+  };
+
+  #graphics drivers
+  services.xserver.videoDrivers = [
+    "modesetting"
+    "nvidia"
+  ];
+
+  hardware.graphics = {
+    enable = true;
+  };
+
+  hardware.nvidia = {
+    modesetting.enable = true;
+    powerManagement.enable = false;
+    powerManagement.finegrained = false;
+    open = false;
+    nvidiaSettings = true;
+  };
+
+  services.printing.enable = false;
+
+  services.pulseaudio.enable = false;
+  security.rtkit.enable = true;
+  services.pipewire = {
+    enable = true;
+    alsa.enable = true;
+    alsa.support32Bit = true;
+    pulse.enable = true;
+  };
+
+  security = {
+    sudo.enable = false;
+    doas.enable = true;
+    doas.extraRules = [
+      {
+        users = [ "coast" ];
+        keepEnv = true;
+        persist = true;
+      }
+    ]; 
+  };
+
+  users.users.coast = {
+    isNormalUser = true;
+    description = "coast";
+    extraGroups = [ "networkmanager" "wheel" ];
+    packages = with pkgs; [
+      kdePackages.kate
+      vesktop
+      fastfetch
+      chromium
+      tor-browser
+      unrar
+      git
+    ];
+  };
+
+  services.flatpak.enable = true;
+
+  programs = {
+    nekoray = {
+      enable = true;
+      tunMode.enable = true;
+    };
+    steam.enable = true;
+  };
+
+  nixpkgs.config.allowUnfree = true;
+
+  environment.systemPackages = with pkgs; [
+    wget
+    vim
+    lshw
+    alsa-utils
+    wine
+    winetricks
+    wineWowPackages.stable
+    wine64
+    wineWowPackages.waylandFull
+  ];
+
+  system.stateVersion = "25.05";
+
+}