hosts/littleroot: add nxios installer image

Author: EdenEast

.github/workflows/build-nixos.yml

@@ -7,6 +7,24 @@ concurrency:
   cancel-in-progress: true
   group: ${{ github.workflow }}-${{ github.ref }}
 jobs:
+  build-littleroot:
+    runs-on: ubuntu-latest
+    steps:
+    - name: Free Disk Space (Ubuntu)
+      uses: jlumbroso/free-disk-space@main
+    - name: Checkout
+      uses: actions/checkout@v6
+      with:
+        fetch-depth: 1
+    - name: Install Nix
+      uses: DeterminateSystems/nix-installer-action@main
+    - name: Cachix
+      uses: cachix/cachix-action@master
+      with:
+        authToken: ${{ secrets.CACHIX_AUTH_TOKEN }}
+        name: edeneast
+    - name: Build littleroot
+      run: nix build --accept-flake-config --print-out-paths --show-trace .#nixosConfigurations.littleroot.config.system.build.toplevel
   build-rize:
     runs-on: ubuntu-latest
     steps:

flake.lock

@@ -50,6 +50,10 @@
         flake-compat.follows = "flake-compat";
       };
     };
+    disko = {
+      url = "github:nix-community/disko";
+      inputs.nixpkgs.follows = "nixpkgs";
+    };
 
     # Precompiled nix-index database
     nix-index-database = {
@@ -113,6 +117,7 @@
     };
 
   nixConfig = {
+    accept-flake-config = true;
     extra-substituters = [
       "https://edeneast.cachix.org"
       "https://nix-community.cachix.org"

flake.nix

@@ -0,0 +1,23 @@
+{
+  lib,
+  modulesPath,
+  ...
+}: {
+  imports = [
+    "${modulesPath}/installer/cd-dvd/installation-cd-graphical-gnome.nix"
+  ];
+
+  image.baseName = lib.mkForce "littleroot";
+  networking.hostName = "littleroot";
+  nixpkgs.hostPlatform = "x86_64-linux";
+
+  my = {
+    nixos = {
+      desktop.gnome.enable = true;
+      profiles.iso.enable = true;
+      programs.nix.enable = true;
+    };
+
+    users.root.enable = true;
+  };
+}

hosts/littleroot/configuration.nix

@@ -0,0 +1,17 @@
+# Littleroot
+
+## Overview
+
+Minimal graphical NixOS installation ISO for basic system installation and recovery.
+
+---
+
+## Details
+
+| Component    | Details                                                  |
+| -----------  | ------------------------------                           |
+| **Type**     | Installation ISO                                         |
+| **Base**     | `installation-cd-graphical-gnome.nix`                    |
+| **Desktop**  | GNOME                                                    |
+| **Purpose**  | Graphical installer for new NixOS systems                |
+| **Features** | Full GNOME desktop, Firefox browser, and NixOS installer |

hosts/littleroot/readme.md

@@ -15,9 +15,10 @@
         modules =
           [
             path
+            inputs.disko.nixosModules.disko
             inputs.home-manager.nixosModules.home-manager
-            inputs.nixos-wsl.nixosModules.default
             inputs.nix-index-database.nixosModules.nix-index
+            inputs.nixos-wsl.nixosModules.default
 
             {
               nixpkgs = {

modules/flake/hosts.nix

@@ -26,14 +26,15 @@
         libnotify
         lm_sensors
         vim
+        neovim
       ];
 
       variables = {
         inherit (config.my.nixos) FLAKE;
         NH_FLAKE = config.my.nixos.FLAKE;
 
-        EDITOR = "vim";
-        VISUAL = "vim";
+        EDITOR = "nvim";
+        VISUAL = "nvim";
       };
     };
 

modules/nixos/base/default.nix

@@ -0,0 +1,58 @@
+{
+  config,
+  lib,
+  pkgs,
+  self,
+  ...
+}: {
+  options.my.nixos.profiles.iso.enable = lib.mkEnableOption "based system configuration for ISO images";
+
+  config = lib.mkIf config.my.nixos.profiles.iso.enable {
+    boot = {
+      kernelPackages = lib.mkDefault pkgs.linuxPackages_latest;
+
+      supportedFilesystems = lib.mkForce [
+        "btrfs"
+        "vfat"
+        "f2fs"
+        "xfs"
+        "ntfs"
+        "cifs"
+      ];
+    };
+
+    documentation.nixos.enable = false;
+    environment = {
+      etc."nixos".source = self;
+
+      systemPackages = with pkgs; [
+        neovim
+        htop
+        lm_sensors
+        wget
+      ];
+    };
+
+    nix.distributedBuilds = lib.mkForce false;
+
+    programs = {
+      direnv = {
+        enable = true;
+        nix-direnv.enable = true;
+        silent = true;
+      };
+
+      git = {
+        enable = true;
+        package = pkgs.gitMinimal;
+      };
+    };
+
+    system = {
+      configurationRevision = self.rev or self.dirtyRev or null;
+      switch.enable = false;
+    };
+
+    users.defaultUserShell = lib.mkForce pkgs.bash;
+  };
+}