fix: work on making the installer work offline

hosts/boot.nix

@@ -34,6 +34,11 @@
           type = lib.types.str;
           description = "The main disk device to use for installation.";
         };
+        useSwap = lib.mkOption {
+          type = lib.types.bool;
+          default = true;
+          description = "Whether to create and use a swap partition.";
+        };
         swapSize = lib.mkOption {
           type = lib.types.str;
           description = "The size of the swap partition.";
@@ -115,7 +120,7 @@
               };
 
               # Swap Partition (size configurable per host)
-              swap = {
+              swap = lib.mkIf config.athenix.host.filesystem.useSwap {
                 name = "swap";
                 label = "swap";
                 size = config.athenix.host.filesystem.swapSize;

hosts/types/nix-zima.nix

@@ -37,7 +37,7 @@
   ];
 
   # ========== Filesystem Configuration ==========
-  athenix.host.filesystem.swapSize = lib.mkDefault "0G";
+  athenix.host.filesystem.useSwap = lib.mkDefault false;
   athenix.host.filesystem.device = lib.mkDefault "/dev/mmcblk0";
   athenix.host.buildMethods = lib.mkDefault [ "installer-iso" ];
   nixpkgs.hostPlatform = lib.mkDefault "x86_64-linux";

installer/auto-install.nix

@@ -13,6 +13,7 @@
   ...
 }:
 {
+  # Ensure the entire system closure and all dependencies are included in the ISO
   environment.systemPackages = [
     pkgs.git
     pkgs.bashInteractive
@@ -20,6 +21,14 @@
     targetSystem
   ];
 
+  # Explicitly include the system closure in the ISO image to prevent any need to build or fetch
+  isoImage.contents = [
+    {
+      source = targetSystem;
+      target = "/system";
+    }
+  ];
+
   nixpkgs.hostPlatform = hostPlatform;
 
   systemd.services.auto-install = {
@@ -45,7 +54,13 @@
       ${diskoScript}
 
       echo ">>> Running nixos-install..."
-      nixos-install --no-root-passwd --system ${targetSystem}
+      # Use only local store - don't fetch from binary cache or build
+      nixos-install \
+        --no-root-passwd \
+        --root /mnt \
+        --system ${targetSystem} \
+        --option substitute false \
+        --option build-use-sandbox false
 
       echo ">>> Done. Rebooting."
       systemctl reboot

inventory.nix

@@ -139,6 +139,8 @@
     };
   };
 
+  # ========== ZimaBoard Desktops ==========
+  # Creates: nix-zima1, nix-zima2, nix-zima3
   nix-zima.devices = 3;
 
   # ========== Ephemeral/Netboot System ==========