refactor(base profile): move base profile configurations into modules

home/modules/config/nix/default.nix

@@ -0,0 +1,26 @@
+{ lib, config, pkgs, outputs, ... }:
+
+let
+  cfg = config.homeModules.config.nix;
+in
+
+{
+  config = lib.mkIf cfg.enable {
+
+    nixpkgs = {
+      overlays = builtins.attrValues outputs.overlays;
+      config = {
+        allowUnfree = true;
+        allowUnfreePredicate = (_: true);
+      };
+    };
+
+    nix = {
+      package = lib.mkDefault pkgs.nix;
+      settings = {
+        experimental-features = [ "nix-command" "flakes" "repl-flake" ];
+        warn-dirty = false;
+      };
+    };
+  };
+}