yo

configuration.nix

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+#configuration.nix
+{ config, pkgs, inputs, ... }:
+
+{
+  imports =
+    [ # Include the results of the hardware scan.
+      ./hardware-configuration.nix
+    ];
+
+  # Bootloader.
+  boot.loader.systemd-boot.enable = true;
+  boot.loader.efi.canTouchEfiVariables = true;
+
+  # Use latest kernel.
+  boot.kernelPackages = pkgs.linuxPackages_latest;
+
+  networking.hostName = "atlas"; # 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/Berlin";
+
+  # Select internationalisation properties.
+  i18n.defaultLocale = "en_US.UTF-8";
+
+  i18n.extraLocaleSettings = {
+    LC_ADDRESS = "de_DE.UTF-8";
+    LC_IDENTIFICATION = "de_DE.UTF-8";
+    LC_MEASUREMENT = "de_DE.UTF-8";
+    LC_MONETARY = "de_DE.UTF-8";
+    LC_NAME = "de_DE.UTF-8";
+    LC_NUMERIC = "de_DE.UTF-8";
+    LC_PAPER = "de_DE.UTF-8";
+    LC_TELEPHONE = "de_DE.UTF-8";
+    LC_TIME = "de_DE.UTF-8";
+  };
+
+  # Enable the X11 windowing system (needed for some apps and Ly X11 support).
+  services.xserver.enable = true;
+
+  # Use Ly as the display manager.
+  services.displayManager.ly.enable = true;
+  services.displayManager.defaultSession = "niri";
+
+  # Configure keymap in X11
+  services.xserver.xkb = {
+    layout = "de";
+    variant = "nodeadkeys";
+  };
+
+  # Configure console keymap
+  console.keyMap = "de-latin1-nodeadkeys";
+
+  # Enable CUPS to print documents.
+  services.printing.enable = true;
+
+  # Enable Bluetooth
+  hardware.bluetooth.enable = true;
+  hardware.bluetooth.powerOnBoot = true;
+
+  # Enable sound with pipewire.
+  services.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;
+
+  # Define a user account. Don't forget to set a password with ‘passwd’.
+  users.users.pinj = {
+    isNormalUser = true;
+    description = "Melvin Ragusa";
+    extraGroups = [ "networkmanager" "wheel" ];
+    packages = with pkgs; [
+    #  thunderbird
+    ];
+  };
+
+  nix.settings.experimental-features = [ "nix-command" "flakes" ];
+
+  programs.yazi.enable = true;
+  programs.firefox.enable = true;
+  programs.niri.enable = true;
+
+  programs.zsh.enable = true;
+  users.users.pinj.shell = pkgs.zsh;
+
+  # Allow unfree packages
+  nixpkgs.config.allowUnfree = true;
+
+  # List packages installed in system profile. To search, run:
+  # $ nix search wget
+  environment.systemPackages = with pkgs; [
+    fastfetch
+    nil
+    micro
+    xwayland-satellite
+    grim
+    slurp
+    wl-clipboard
+    git
+    gh
+    nautilus
+    zed-editor
+    inputs.noctalia.packages.${pkgs.system}.default
+    inputs.zen-browser.packages.${pkgs.system}.default
+    inputs.ghostty.packages.${pkgs.system}.default
+    inputs.opencode.packages.${pkgs.system}.default
+    claude-code
+    pnpm
+  ];
+
+  # Fonts
+  fonts.packages = with pkgs; [
+    jetbrains-mono
+    nerd-fonts.jetbrains-mono
+  ];
+
+  fonts.fontconfig.enable = true;
+
+  # 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:
+  services.openssh.enable = true;
+  services.tailscale.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 = "25.11"; # Did you read the comment?
+
+}

flake.nix

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+#flake.nix
+{
+  description = "atlas - NixOS Config for Desktop";
+
+  inputs = {
+    nixpkgs.url = "github:nixos/nixpkgs/nixos-unstable";
+
+    quickshell = {
+      url = "github:outfoxxed/quickshell";
+      inputs.nixpkgs.follows = "nixpkgs";
+    };
+
+    noctalia = {
+      url = "github:noctalia-dev/noctalia-shell";
+      inputs.nixpkgs.follows = "nixpkgs";
+      inputs.quickshell.follows = "quickshell";
+    };
+
+    zen-browser = {
+      url = "github:0xc000022070/zen-browser-flake";
+      inputs.nixpkgs.follows = "nixpkgs";
+    };
+
+    opencode = {
+      url = "github:anomalyco/opencode/dev";
+      inputs.nixpkgs.follows = "nixpkgs";
+    };
+
+    ghostty = {
+      url = "github:ghostty-org/ghostty";
+    };
+  };
+
+  outputs = inputs@{ self, nixpkgs, ... }:
+    let
+      system = "x86_64-linux";
+    in
+    {
+      nixosConfigurations.nixos = nixpkgs.lib.nixosSystem {
+        inherit system;
+        specialArgs = { inherit inputs; };
+        modules = [ ./configuration.nix ];
+      };
+    };
+}