Enable swiching default VM between console and gui.

templates/default/modules/aspects/defaults.nix

@@ -37,7 +37,8 @@
     #
     #  # Instead try to be explicit if a function is intended for ONLY { host }.
     (den.lib.take.exactly (
-      { host }:
+      # deadnix: skip
+      { OS, host }:
       {
         nixos.networking.hostName = host.hostName;
       }

templates/default/modules/aspects/eg/vm-bootable.nix

@@ -1,8 +1,16 @@
+let
+  installer = variant: {
+    nixos =
+      { modulesPath, ... }:
+      {
+        imports = [ (modulesPath + "/installer/cd-dvd/installation-cd-${variant}.nix") ];
+      };
+  };
+in
 {
   # make USB/VM installers.
-  eg.vm-bootable.nixos =
-    { modulesPath, ... }:
-    {
-      imports = [ (modulesPath + "/installer/cd-dvd/installation-cd-graphical-base.nix") ];
-    };
+  eg.vm-bootable.provides = {
+    tui = installer "minimal";
+    gui = installer "graphical-base";
+  };
 }

templates/default/modules/aspects/eg/vm.nix

@@ -0,0 +1,15 @@
+{ eg, ... }:
+{
+  eg.vm.provides = {
+    gui.includes = [
+      eg.vm
+      eg.vm-bootable._.gui
+      eg.xfce-desktop
+    ];
+
+    tui.includes = [
+      eg.vm
+      eg.vm-bootable._.tui
+    ];
+  };
+}

templates/default/modules/aspects/igloo.nix

@@ -1,4 +1,3 @@
-{ eg, ... }:
 {
   den.aspects.igloo = {
     # igloo host provides some home-manager defaults to its users.
@@ -11,12 +10,6 @@
         environment.systemPackages = [ pkgs.hello ];
       };
 
-    # Include aspects from the eg namespace
-    includes = [
-      eg.vm-bootable
-      eg.xfce-desktop
-    ];
-
     # <host>.provides.<user>, via eg/routes.nix
     provides.alice =
       { user, ... }:

templates/default/modules/vm.nix

@@ -1,8 +1,14 @@
 # enables `nix run .#vm`. it is very useful to have a VM
 # you can edit your config an launch the VM to test stuff
 # instead of having to reboot each time.
-{ inputs, ... }:
+{ inputs, eg, ... }:
 {
+
+  den.aspects.igloo.includes = [
+    eg.vm._.gui
+    # eg.vm._.tui
+  ];
+
   perSystem =
     { pkgs, ... }:
     {