hosts/bootstrap: update config

A little update which should result in a smaller closure size.

hosts/bootstrap/default.nix

@@ -7,13 +7,12 @@
 
   isoImage = {
     isoBaseName = config.networking.hostName;
+
+    # Store the source code in a easy-to-locate path.
     contents = [{
       source = inputs.self;
-      target = "/bootstrap/";
+      target = "/etc/nixos/";
     }];
-    storeContents = [
-      inputs.self.devShells.${config.nixpkgs.system}.default
-    ] ++ builtins.attrValues inputs;
   };
 
   boot = {
@@ -22,6 +21,7 @@
     supportedFilesystems = lib.mkForce [ "btrfs" "reiserfs" "vfat" "f2fs" "xfs" "ntfs" "cifs" ];
   };
 
+  # Assume that this will be used for remote installations.
   services.openssh = {
     enable = true;
     allowSFTP = true;