diff --git a/configuration.nix b/configuration.nix
new file mode 100644
index 0000000..22597aa
--- /dev/null
+++ b/configuration.nix
@@ -0,0 +1,238 @@
+# Edit this configuration file to define what should be installed on
+# your system.  Help is available in the configuration.nix(5) man page
+# and in the NixOS manual (accessible by running ‘nixos-help’).
+
+{ config, pkgs, lib, ... }:
+let
+  unstable = import <nixpkgs-unstable> { config = { allowUnfree = true; }; };  
+in {
+  imports =
+    [ # Include the results of the hardware scan.
+      ./hardware-configuration.nix
+    ];
+
+  # Bootloader.
+  boot.loader.systemd-boot.enable = true;
+  boot.loader.efi.canTouchEfiVariables = true;
+
+  networking.hostName = "hp"; # Define your hostname.
+  # networking.wireless.enable = true;  # Enables wireless support via wpa_supplicant.
+
+  # Configure network proxy if necessary
+  # networking.proxy.default = "http://user:password@proxy:port/";
+  # networking.proxy.noProxy = "127.0.0.1,localhost,internal.domain";
+
+  # Enable networking
+  networking.networkmanager.enable = true;
+
+  # Set your time zone.
+  time.timeZone = "Europe/Istanbul";
+
+  # Select internationalisation properties.
+  i18n.defaultLocale = "en_US.UTF-8";
+
+  i18n.extraLocaleSettings = {
+    LC_ADDRESS = "tr_TR.UTF-8";
+    LC_IDENTIFICATION = "tr_TR.UTF-8";
+    LC_MEASUREMENT = "tr_TR.UTF-8";
+    LC_MONETARY = "tr_TR.UTF-8";
+    LC_NAME = "tr_TR.UTF-8";
+    LC_NUMERIC = "tr_TR.UTF-8";
+    LC_PAPER = "tr_TR.UTF-8";
+    LC_TELEPHONE = "tr_TR.UTF-8";
+    LC_TIME = "tr_TR.UTF-8";
+  };
+
+  # Enable the X11 windowing system.
+  services.xserver.enable = true;
+
+  # Enable the KDE Plasma Desktop Environment.
+  services.xserver.displayManager.sddm.enable = true;
+  services.xserver.desktopManager.plasma5.enable = true;
+
+  # Configure keymap in X11
+  services.xserver = {
+    layout = "us";
+    xkbVariant = "";
+  };
+
+  # Enable CUPS to print documents.
+  services.printing.enable = true;
+
+  # Enable sound with pipewire.
+  sound.enable = true;
+  hardware.pulseaudio.enable = false;
+  security.rtkit.enable = true;
+  services.pipewire = {
+    enable = true;
+    alsa.enable = true;
+    alsa.support32Bit = true;
+    pulse.enable = true;
+    # If you want to use JACK applications, uncomment this
+    #jack.enable = true;
+
+    # use the example session manager (no others are packaged yet so this is enabled by default,
+    # no need to redefine it in your config for now)
+    #media-session.enable = true;
+  };
+
+  # Enable touchpad support (enabled default in most desktopManager).
+  # services.xserver.libinput.enable = true;
+  nixpkgs.config.allowUnfreePredicate = pkg: builtins.elem (lib.getName pkg) [
+    "steam"
+    "steam-original"
+    "steam-run"
+    "steamcmd"
+  ];
+
+  # Define a user account. Don't forget to set a password with ‘passwd’.
+  users.users.osbm = {
+    isNormalUser = true;
+    description = "osbm";
+    extraGroups = [ "networkmanager" "wheel" "docker"];
+    # shell = pkgs.fish; # dont change default shell i just need fish to be default in alacritty
+    packages = with pkgs; [
+      firefox
+      kate
+      vscode
+      # alacritty
+      mpv
+      qbittorrent
+      discord
+    #  obsidian
+    #  thunderbird
+    ];
+  };
+
+  # Allow unfree packages
+  nixpkgs.config.allowUnfree = true;
+
+  # List packages installed in system profile. To search, run:
+  # $ nix search wget
+
+  environment.systemPackages = with pkgs; [
+    vim # Do not forget to add an editor to edit configuration.nix! The Nano editor is also installed by default.
+    wget
+    zip
+    unzip
+    trash-cli
+    neofetch
+    git
+    git-lfs
+    tree
+    pciutils
+    tmux
+    pyenv
+    zoxide
+    tlrc
+    python3
+    fish
+    gnumake
+    gcc
+    noto-fonts-cjk-sans
+    libreoffice
+    # cudatoolkit
+    steam
+    steam-run
+    tmuxPlugins.sensible
+    tmuxPlugins.dracula
+    unstable.alacritty
+    unstable.obsidian
+    unstable.ani-cli
+  ];
+
+
+  # This is using a rec (recursive) expression to set and access XDG_BIN_HOME within the expression
+  # For more on rec expressions see https://nix.dev/tutorials/first-steps/nix-language#recursive-attribute-set-rec
+  environment.sessionVariables = rec {
+    XDG_CACHE_HOME  = "$HOME/.cache";
+    XDG_CONFIG_HOME = "$HOME/.config";
+    XDG_DATA_HOME   = "$HOME/.local/share";
+    XDG_STATE_HOME  = "$HOME/.local/state";
+
+    # Not officially in the specification
+    XDG_BIN_HOME    = "$HOME/.local/bin";
+    PATH = [ 
+      "${XDG_BIN_HOME}"
+    ];
+  };
+
+  
+
+  virtualisation.docker.enable = true;
+  programs.steam = {
+    enable = true;
+    remotePlay.openFirewall = true; # Open ports in the firewall for Steam Remote Play
+    dedicatedServer.openFirewall = true; # Open ports in the firewall for Source Dedicated Server
+  };
+
+
+  # from https://github.com/grahamc/nixos-cuda-example/blob/master/configuration.nix
+  # services.xserver.videoDrivers = [ "nvidia" ];
+
+  # systemd.services.nvidia-control-devices = {
+  #   wantedBy = [ "multi-user.target" ];
+  #   serviceConfig.ExecStart = "${pkgs.linuxPackages.nvidia_x11.bin}/bin/nvidia-smi";
+  # };
+  # programs.bash.
+
+  programs.tmux = { # doesnt work
+    enable = true;
+    # shell = "${pkgs.fish}/bin/fish";
+    # terminal = "tmux-256color";
+    historyLimit = 100000;
+    plugins = with pkgs;
+      [
+        # {
+        #   plugin = tmuxPlugins.dracula;
+        #   extraConfig = "set -g @dracula-plugins 'cpu-usage ram-usage battery time'";
+        # }
+        tmuxPlugins.dracula
+        tmuxPlugins.sensible
+        
+    ];
+    extraConfig = ''
+      set -g prefix C-s
+      set -g base-index 1
+      setw -g pane-base-index 1
+      set-option -g default-shell ${pkgs.fish}/bin/fish
+      set -g mouse on
+
+      # plugins
+      set -g @dracula-plugins "cpu-usage ram-usage battery time"
+      set -g @dracula-show-timezone false
+
+      # Set new panes to open in current directory
+      bind c new-window -c "#{pane_current_path}"
+      bind '"' split-window -c "#{pane_current_path}"
+      bind % split-window -h -c "#{pane_current_path}"
+    '';
+  };
+  # Some programs need SUID wrappers, can be configured further or are
+  # started in user sessions.
+  # programs.mtr.enable = true;
+  # programs.gnupg.agent = {
+  #   enable = true;
+  #   enableSSHSupport = true;
+  # };
+
+  # List services that you want to enable:
+
+  # Enable the OpenSSH daemon.
+  services.openssh.enable = true;
+
+  # Open ports in the firewall.
+  # networking.firewall.allowedTCPPorts = [ ... ];
+  # networking.firewall.allowedUDPPorts = [ ... ];
+  # Or disable the firewall altogether.
+  # networking.firewall.enable = false;
+
+  # This value determines the NixOS release from which the default
+  # settings for stateful data, like file locations and database versions
+  # on your system were taken. It‘s perfectly fine and recommended to leave
+  # this value at the release version of the first install of this system.
+  # Before changing this value read the documentation for this option
+  # (e.g. man configuration.nix or on https://nixos.org/nixos/options.html).
+  system.stateVersion = "23.11"; # Did you read the comment?
+
+}
diff --git a/hardware-configuration.nix b/hardware-configuration.nix
new file mode 100644
index 0000000..c313a3c
--- /dev/null
+++ b/hardware-configuration.nix
@@ -0,0 +1,41 @@
+# Do not modify this file!  It was generated by ‘nixos-generate-config’
+# and may be overwritten by future invocations.  Please make changes
+# to /etc/nixos/configuration.nix instead.
+{ config, lib, pkgs, modulesPath, ... }:
+
+{
+  imports =
+    [ (modulesPath + "/installer/scan/not-detected.nix")
+    ];
+
+  boot.initrd.availableKernelModules = [ "xhci_pci" "ahci" "nvme" "usbhid" "usb_storage" "sd_mod" ];
+  boot.initrd.kernelModules = [ ];
+  boot.kernelModules = [ "kvm-intel" ];
+  boot.extraModulePackages = [ ];
+
+  fileSystems."/" =
+    { device = "/dev/disk/by-uuid/33f7d3db-1163-4e9b-919f-ce6efa90bcaa";
+      fsType = "ext4";
+    };
+
+  fileSystems."/boot" =
+    { device = "/dev/disk/by-uuid/D7C9-3342";
+      fsType = "vfat";
+      options = [ "fmask=0022" "dmask=0022" ];
+    };
+
+  swapDevices =
+    [ { device = "/dev/disk/by-uuid/dd5ff970-e25f-4e6a-b5fb-61902f3de53a"; }
+    ];
+
+  # Enables DHCP on each ethernet and wireless interface. In case of scripted networking
+  # (the default) this is the recommended approach. When using systemd-networkd it's
+  # still possible to use this option, but it's recommended to use it in conjunction
+  # with explicit per-interface declarations with `networking.interfaces.<interface>.useDHCP`.
+  networking.useDHCP = lib.mkDefault true;
+  # networking.interfaces.eno1.useDHCP = lib.mkDefault true;
+  # networking.interfaces.wlo1.useDHCP = lib.mkDefault true;
+
+  nixpkgs.hostPlatform = lib.mkDefault "x86_64-linux";
+  hardware.cpu.intel.updateMicrocode = lib.mkDefault config.hardware.enableRedistributableFirmware;
+}