Add hostConfig variable to store host information

modules/home/desktop/default.nix

@@ -1,4 +1,4 @@
-{ pkgs, ... }:
+{ pkgs, hostConfig, ... }:
 {
   home.packages = with pkgs; [
     emojione

modules/home/desktop/sway/default.nix

@@ -1,5 +1,7 @@
-{ ... }:
-{
+{ hostConfig, ... }:
+let
+  cfg = hostConfig;
+in {
   imports = [
     ./sway.nix
     ./mako.nix
@@ -7,5 +9,9 @@
     ./swaylock.nix
     ./swayidle.nix
     ./fuzzel.nix
-  ];
+  ] ++ (
+    if hostConfig.laptop then
+      [ ./kanshi.nix ]
+    else []
+  );
 }