Rename pkgs dir to home dir, add x86 and aarch specific linux home

modules

nix/home/local.nix

@@ -0,0 +1,12 @@
+{ ... }:
+{
+  # local_home.nix
+  # This is a template file that is committed to git with minimal changes.
+  # In order to use this and remain pure, each machine needs to create a local branch, i.e `machine-wsl` and set these variables
+  # accordingly, and then commit it.
+  home = {
+    # Stub values for demonstration. Override these in local branch.
+    username = "martin.larsson";
+    homeDirectory = "/Users/martin.larsson";
+  };
+}