Update structure

hosts/kamoshi/configuration.nix

@@ -7,7 +7,7 @@
 {
   imports =
     [ # Include the results of the hardware scan.
-      ./hardware-configuration.nix
+      /etc/nixos/hardware-configuration.nix
     ];
 
   # Use the GRUB 2 boot loader.

symlink.sh

@@ -0,0 +1,13 @@
+#!/usr/bin/env bash
+
+HOST=`hostname`
+if [[ ! -z "$1" ]]; then
+	HOST=$1
+fi
+
+if [[ ! -e "hosts/$HOST/configuration.nix" ]]; then
+	echo "missing config file for $HOST" >&2
+	exit 1
+fi
+
+ln -f "hosts/$HOST/configuration.nix" .