move all expressions to nix/; include modularized home-manager config

nix/os/profiles/removable-medium/pkg.nix

@@ -0,0 +1,27 @@
+{ 
+...
+}:
+
+{
+  imports = [
+    "${builtins.fetchGit { url = "https://github.com/rycee/home-manager.git"; ref = "master"; }}/nixos"
+  ];
+  
+  nixpkgs.config = {
+    allowBroken = false;
+    allowUnfree = true;
+
+    packageOverrides = pkgs: with pkgs; {
+      busyboxStatic =  busybox.override {
+        enableStatic = true;
+        extraConfig = ''
+           CONFIG_STATIC y
+           CONFIG_INSTALL_APPLET_DONT y
+           CONFIG_INSTALL_APPLET_SYMLINKS n
+         '';
+      };
+    };
+  };
+
+  home-manager.users.steveej = import ../../../home-manager/configuration/removable-desktop.nix;
+}