better consistency, add dotfiles for takamaki and new features

modules/features/nixos/nh.nix

@@ -1,19 +0,0 @@
-{ inputs, self, ... }: {
-  flake.nixosModules.global = { pkgs, config, lib, ... }: {
-    options.features.nixos.nh.enable = lib.mkOption {
-      type = lib.types.bool;
-      default = true;
-    };
-
-    config = lib.mkIf (config.features.nixos.nh.enable) {
-      environment.systemPackages = [
-        inputs.nh.packages.${pkgs.stdenv.hostPlatform.system}.default
-      ];
-
-      programs.nh = {
-        enable = true;
-        flake = "/home/grey/nixos";
-      };
-    };
-  };
-}