diff --git a/nixos/configuration.nix b/nixos/configuration.nix
new file mode 100644
index 0000000..52c7c54
--- /dev/null
+++ b/nixos/configuration.nix
@@ -0,0 +1,87 @@
+# 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, ... }:
+
+{
+  imports =
+    [ # Include the results of the hardware scan.
+      ./hardware-configuration.nix
+      ./desktop.nix
+      ./genofire.nix
+    ];
+
+  # --------
+  # always:
+  # --------
+  system.stateVersion = "21.05";
+  system.autoUpgrade.enable = true;
+
+  # boot
+  boot.loader.systemd-boot.enable = true;
+  boot.loader.efi.canTouchEfiVariables = true;
+  # zfs
+  boot.initrd.supportedFilesystems = ["zfs"]; # boot from zfs
+  boot.supportedFilesystems = [ "zfs" ];
+  #boot.kernelParams = [ "nohibernate" ];
+  boot.zfs.requestEncryptionCredentials = []; # list -> default: true - always request for password
+  services.zfs.autoScrub.enable = true;
+
+  networking.useNetworkd = true;
+  networking.useDHCP = false;
+  services.openssh.enable = true;
+
+  time.timeZone = "Europe/Berlin";
+  # i18n.defaultLocale = "en_US.UTF-8";
+  console = {
+    font = "Lat2-Terminus16";
+    keyMap = "de";
+  };
+
+  environment.systemPackages = with pkgs; [
+    python3
+    killall
+    htop
+    mosh
+    git
+    git-lfs
+    tig
+    figlet
+    grml-zsh-config 
+    tmux
+    neovim
+    xh
+    liboping
+    mtr
+    home-manager
+  ];
+
+
+  # --------
+  # specifical this maschine:
+  # --------
+
+  networking.hostId = "6a465f93"; # zfs needed
+  networking.hostName = "fireEmerald"; # Define your hostname.
+  # cryptsetup
+  # boot.initrd.luks.enable = true;
+  boot.initrd.luks.devices = {
+    "croot" = {
+      device = "/dev/disk/by-uuid/e75385e9-b733-49d4-91fd-6ac2fa821195" ;
+    };
+  };
+
+  # my
+  users.defaultUserShell = pkgs.zsh;
+  programs.zsh.enable = true;
+  programs.zsh.autosuggestions.enable = true;
+  programs.zsh.syntaxHighlighting.enable = true;
+  programs.zsh.interactiveShellInit = ''
+    source ${pkgs.grml-zsh-config}/etc/zsh/zshrc
+    # Make user colour green in prompt instead of default blue
+    zstyle ':prompt:grml:left:items:user' pre '%F{green}%B'
+  '';
+  programs.zsh.promptInit = "";
+}
+
diff --git a/nixos/desktop.nix b/nixos/desktop.nix
new file mode 100644
index 0000000..711aea5
--- /dev/null
+++ b/nixos/desktop.nix
@@ -0,0 +1,25 @@
+{ pkgs, ... }:
+
+{
+  networking.wireless.iwd.enable = true;
+  systemd.network.networks.wifi.matchConfig = { Name = "wlan0";};
+  systemd.network.networks.wifi.DHCP = "ipv4";
+
+  sound.enable = true;
+  services.pipewire = {
+    enable = true;
+    alsa.enable = true;
+    #alsa.support32bit = true;
+    pulse.enable = true;
+  };
+  #services.acpid.enable = true;
+
+  environment.systemPackages = with pkgs; [
+    iw
+  ];
+
+  # allow wayland / sway
+  hardware.opengl.enable = true;
+  # gtk config
+  programs.dconf.enable = true;
+}
diff --git a/nixos/genofire.nix b/nixos/genofire.nix
new file mode 100644
index 0000000..fc97462
--- /dev/null
+++ b/nixos/genofire.nix
@@ -0,0 +1,18 @@
+{pkgs, config, ... }:
+{
+
+  services.postgresql = {
+    enable = true;
+    package = pkgs.postgresql_14;
+    dataDir = "/var/lib/postgres/${config.services.postgresql.package.psqlSchema}";
+    # dataDir = /var/lib/postgres/data;
+  };
+
+  users.users.genofire = {
+    uid = 1021;
+    home = "/home/genofire";
+    extraGroups = ["wheel"];
+    isNormalUser = true;
+    useDefaultShell = true;
+  };
+}