First

configuration.nix

@@ -0,0 +1,48 @@
+{
+  lib,
+  pkgs,
+  isImageTarget,
+  ...
+}: {
+  imports = lib.optionals (!isImageTarget) [
+    ./hardware-configuration.nix
+    ./disko-config.nix
+  ];
+
+  # boot.loader.grub = {
+  #   enable = true;
+  #   device = "/dev/vda";
+  # };
+
+  # Enable X server and Plasma 6 desktop environment
+  # services.xserver.enable = true;
+  services.desktopManager.plasma6.enable = true;
+
+  # Enable SDDM
+  services.displayManager.sddm.enable = true;
+
+  # Define the "nixos" user
+  users.users.nixos = {
+    isNormalUser = true;
+    extraGroups = ["wheel" "networkmanager"]; # "wheel" for sudo, "networkmanager" for networking
+    initialPassword = "nixos"; # Default password (changeable on first login)
+  };
+
+  # Allow passwordless sudo for the "wheel" group
+  security.sudo.wheelNeedsPassword = false;
+
+  # Install essential packages
+  environment.systemPackages = with pkgs; [
+    brave
+    vlc
+  ];
+
+  # Enable networking with NetworkManager
+  networking.networkmanager.enable = true;
+
+  # Set the time zone (optional)
+  time.timeZone = "UTC";
+
+  # Specify the system state version
+  system.stateVersion = "23.05";
+}

disko-config.nix

@@ -0,0 +1,39 @@
+{
+  disko.devices = {
+    disk = {
+      main = {
+        type = "disk";
+        device = "/dev/sda"; # CHANGE ME
+        content = {
+          type = "gpt";
+          partitions = {
+            boot = {
+              size = "1M";
+              type = "EF02"; # for GRUB MBR
+              priority = 1;
+            };
+            esp = {
+              size = "512M";
+              type = "EF00";
+              content = {
+                type = "filesystem";
+                format = "vfat";
+                mountpoint = "/boot";
+                mountOptions = ["defaults" "umask=0077"];
+              };
+            };
+            root = {
+              size = "100%";
+              content = {
+                type = "filesystem";
+                format = "ext4";
+                mountpoint = "/";
+                mountOptions = ["noatime" "nodiratime" "discard"];
+              };
+            };
+          };
+        };
+      };
+    };
+  };
+}

flake.lock

@@ -0,0 +1,85 @@
+{
+  "nodes": {
+    "disko": {
+      "inputs": {
+        "nixpkgs": [
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1741786315,
+        "narHash": "sha256-VT65AE2syHVj6v/DGB496bqBnu1PXrrzwlw07/Zpllc=",
+        "owner": "nix-community",
+        "repo": "disko",
+        "rev": "0d8c6ad4a43906d14abd5c60e0ffe7b587b213de",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-community",
+        "repo": "disko",
+        "type": "github"
+      }
+    },
+    "nixlib": {
+      "locked": {
+        "lastModified": 1736643958,
+        "narHash": "sha256-tmpqTSWVRJVhpvfSN9KXBvKEXplrwKnSZNAoNPf/S/s=",
+        "owner": "nix-community",
+        "repo": "nixpkgs.lib",
+        "rev": "1418bc28a52126761c02dd3d89b2d8ca0f521181",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-community",
+        "repo": "nixpkgs.lib",
+        "type": "github"
+      }
+    },
+    "nixos-generators": {
+      "inputs": {
+        "nixlib": "nixlib",
+        "nixpkgs": [
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1742568034,
+        "narHash": "sha256-QaMEhcnscfF2MqB7flZr+sLJMMYZPnvqO4NYf9B4G38=",
+        "owner": "nix-community",
+        "repo": "nixos-generators",
+        "rev": "42ee229088490e3777ed7d1162cb9e9d8c3dbb11",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-community",
+        "repo": "nixos-generators",
+        "type": "github"
+      }
+    },
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1743315132,
+        "narHash": "sha256-6hl6L/tRnwubHcA4pfUUtk542wn2Om+D4UnDhlDW9BE=",
+        "owner": "nixos",
+        "repo": "nixpkgs",
+        "rev": "52faf482a3889b7619003c0daec593a1912fddc1",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nixos",
+        "ref": "nixos-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "disko": "disko",
+        "nixos-generators": "nixos-generators",
+        "nixpkgs": "nixpkgs"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}

flake.nix

@@ -0,0 +1,54 @@
+{
+  inputs = {
+    nixpkgs.url = "github:nixos/nixpkgs/nixos-unstable";
+
+    nixos-generators = {
+      url = "github:nix-community/nixos-generators";
+      inputs.nixpkgs.follows = "nixpkgs";
+    };
+    disko = {
+      url = "github:nix-community/disko";
+      inputs.nixpkgs.follows = "nixpkgs";
+    };
+  };
+
+  outputs = {
+    nixpkgs,
+    nixos-generators,
+    ...
+  } @ inputs: {
+    nixosConfigurations = {
+      m3-zelda = nixpkgs.lib.nixosSystem {
+        modules = [
+          ./configuration.nix
+          inputs.disko.nixosModules.disko
+        ];
+        specialArgs = {
+          isImageTarget = false;
+        };
+      };
+    };
+    packages.x86_64-linux = {
+      iso = nixos-generators.nixosGenerate {
+        system = "x86_64-linux";
+        modules = [
+          ./configuration.nix
+        ];
+        specialArgs = {
+          isImageTarget = true;
+        };
+        format = "iso";
+      };
+      qcow = nixos-generators.nixosGenerate {
+        system = "x86_64-linux";
+        modules = [
+          ./configuration.nix
+        ];
+        specialArgs = {
+          isImageTarget = true;
+        };
+        format = "qcow";
+      };
+    };
+  };
+}

hardware-configuration.nix

@@ -0,0 +1,29 @@
+# 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 + "/profiles/qemu-guest.nix")
+  ];
+
+  boot.initrd.availableKernelModules = ["ahci" "xhci_pci" "virtio_pci" "sr_mod" "virtio_blk"];
+  boot.initrd.kernelModules = [];
+  boot.extraModulePackages = [];
+
+  swapDevices = [];
+
+  # 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.enp1s0.useDHCP = lib.mkDefault true;
+
+  nixpkgs.hostPlatform = lib.mkDefault "x86_64-linux";
+}