Format nix files using 'nixfmt'

.gitignore

@@ -3,3 +3,4 @@
 result
 result-*
 
+nixos-efi-vars.fd

README.md

@@ -1,9 +1,15 @@
 # nixos
 
-My NixOS config
+## Set up virtual machine ([`disko`](https://github.com/nix-community/disko/blob/master/docs/interactive-vm.md))
+
+1. Build the virtual machine
 
 ```
-git clone https://git.hektormisplon.xyz/hektor/nix.git
-cd nix
-sudo nix run 'github:nix-community/disko/latest#disko-install' -- --flake .#vm --disk root /dev/vda
+nix run -L '.#nixosConfigurations.vm.config.system.build.vmWithDisko'
+```
+
+2. Run the virtual machine
+
+```
+QEMU_KERNEL_PARAMS=console=ttyS0 ./result/bin/run-nixos-vm -nographic; reset
 ```

flake.lock

@@ -44,11 +44,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1759439645,
-        "narHash": "sha256-oiAyQaRilPk525Z5aTtTNWNzSrcdJ7IXM0/PL3CGlbI=",
+        "lastModified": 1759580034,
+        "narHash": "sha256-YWo57PL7mGZU7D4WeKFMiW4ex/O6ZolUS6UNBHTZfkI=",
         "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "879bd460b3d3e8571354ce172128fbcbac1ed633",
+        "rev": "3bcc93c5f7a4b30335d31f21e2f1281cba68c318",
         "type": "github"
       },
       "original": {

flake.nix

@@ -3,28 +3,38 @@
     nixpkgs = {
       url = "github:nixos/nixpkgs?ref=nixos-25.05";
     };
-    home-manager = {
-      url = "github:nix-community/home-manager/release-25.05";
-      inputs.nixpkgs.follows = "nixpkgs";
-    };
     disko = {
       url = "github:nix-community/disko/latest";
       inputs.nixpkgs.follows = "nixpkgs";
     };
-  };
-
-  outputs = { self, nixpkgs, disko, home-manager }: {
-    nixosConfigurations.vm = nixpkgs.lib.nixosSystem {
-      system = "x86_64-linux";
-      modules = [
-        ./hosts/vm/configuration.nix
-        disko.nixosModules.disko
-        home-manager.nixosModules.home-manager {
-          home-manager.useGlobalPkgs = true;
-          home-manager.useUserPackages = true;
-          home-manager.users.h = ./hosts/vm/home.nix;
-	      }
-      ];
+    home-manager = {
+      url = "github:nix-community/home-manager/release-25.05";
+      inputs.nixpkgs.follows = "nixpkgs";
     };
   };
+
+  outputs =
+    {
+      self,
+      nixpkgs,
+      disko,
+      home-manager,
+    }:
+    {
+      nixosConfigurations = {
+        vm = nixpkgs.lib.nixosSystem {
+          system = "x86_64-linux";
+          modules = [
+            disko.nixosModules.disko
+            ./hosts/vm/configuration.nix
+            home-manager.nixosModules.home-manager
+            {
+              home-manager.useGlobalPkgs = true;
+              home-manager.useUserPackages = true;
+              home-manager.users.h = ./hosts/vm/home.nix;
+            }
+          ];
+        };
+      };
+    };
 }

hosts/vm/configuration.nix

@@ -3,37 +3,35 @@
 {
   system.stateVersion = "25.05";
 
-  imports =
-    [
-      ./hard.nix
-      ./disk.nix
-      ../../modules/bootloader.nix
-      ../../modules/networking.nix
-      ../../modules/users.nix
-      ../../modules/audio.nix
-      ../../modules/printing.nix
-      ../../modules/localization.nix
-      ../../modules/x.nix
-    ];
+  imports = [
+    ./hard.nix
+    ./disk.nix
+    ../../modules/bootloader.nix
+    ../../modules/networking.nix
+    ../../modules/users.nix
+    ../../modules/audio.nix
+    ../../modules/printing.nix
+    ../../modules/localization.nix
+    ../../modules/x.nix
+  ];
 
-  nix.settings.experimental-features = [ "nix-command" "flakes" ];
+  nix.settings.experimental-features = [
+    "nix-command"
+    "flakes"
+  ];
 
-  # These are needed for ZFS
 
-  networking.hostId = "25698a58";
-  # https://discourse.nixos.org/t/zfs-with-disko-faluire-to-import-zfs-pool/61988/3
-  boot = {
-    zfs = {
-        devNodes = "/dev/disk/by-uuid";
-      };
-  };
+  disko.devices.disk.main.device = "/dev/vda";
 
   programs.git.enable = true;
   programs.firefox.enable = true;
 
   nixpkgs.config.allowUnfree = true;
 
-  environment.systemPackages = with pkgs; [ neovim ];
+  environment.systemPackages = with pkgs; [
+    neovim
+    kitty
+  ];
 
   services.spice-vdagentd.enable = true;
   services.openssh = {

hosts/vm/disk.nix

@@ -1 +1,42 @@
-import ../../modules/disko.zfs-encrypted-root.nix
+# USAGE in your configuration.nix.
+# Update devices to match your hardware.
+# {
+#  imports = [ ./disko-config.nix ];
+#  disko.devices.disk.main.device = "/dev/sda";
+# }
+{
+  disko.devices = {
+    disk = {
+      main = {
+        type = "disk";
+        content = {
+          type = "gpt";
+          partitions = {
+            boot = {
+              size = "1M";
+              type = "EF02"; # for grub MBR
+            };
+            ESP = {
+              size = "1G";
+              type = "EF00";
+              content = {
+                type = "filesystem";
+                format = "vfat";
+                mountpoint = "/boot";
+                mountOptions = [ "umask=0077" ];
+              };
+            };
+            root = {
+              size = "100%";
+              content = {
+                type = "filesystem";
+                format = "ext4";
+                mountpoint = "/";
+              };
+            };
+          };
+        };
+      };
+    };
+  };
+}

hosts/vm/hard.nix

@@ -1,14 +1,26 @@
 # 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, ... }:
+{
+  config,
+  lib,
+  pkgs,
+  modulesPath,
+  ...
+}:
 
 {
-  imports =
-    [ (modulesPath + "/profiles/qemu-guest.nix")
-    ];
+  imports = [
+    (modulesPath + "/profiles/qemu-guest.nix")
+  ];
 
-  boot.initrd.availableKernelModules = [ "ahci" "xhci_pci" "virtio_pci" "sr_mod" "virtio_blk" ];
+  boot.initrd.availableKernelModules = [
+    "ahci"
+    "xhci_pci"
+    "virtio_pci"
+    "sr_mod"
+    "virtio_blk"
+  ];
   boot.initrd.kernelModules = [ ];
   boot.kernelModules = [ "kvm-intel" ];
   boot.extraModulePackages = [ ];

modules/networking.nix

@@ -2,7 +2,11 @@
 
 {
   networking.hostName = "nixos";
-  networking.wireless = { iwd = { enable = true; }; };
+  networking.wireless = {
+    iwd = {
+      enable = true;
+    };
+  };
   networking.firewall = {
     enable = true;
     allowedTCPPorts = [ 22 ];

modules/printing.nix

@@ -1,5 +1,5 @@
 { ... }:
 
-{ 
+{
   services.printing.enable = true;
 }

modules/x.nix

@@ -2,10 +2,10 @@
 
 {
   services.xserver.windowManager.xmonad = {
-   enable = true;
-   enableContribAndExtras = true;
-   config = builtins.readFile ../dots/.xmonad/xmonad.hs;
- };
+    enable = true;
+    enableContribAndExtras = true;
+    config = builtins.readFile ../dots/.xmonad/xmonad.hs;
+  };
 
   services.xserver = {
     enable = true;