imp: add a nixos module

flake.nix

@@ -34,6 +34,7 @@
 
   in
   {
+    nixosModules.flk = import ./nixosModule.nix;
 
     defaultPackage = ufrContract supportedSystems ./. flkInputs;
 

nixosModule.nix

@@ -0,0 +1,28 @@
+# the flk function that still needs to be instantiated
+flk:
+
+{ config, pkgs, lib, ... }:
+let
+ cfg = config.flk;
+in
+with lib; {
+  options.flk = {
+    enable = mkEnableOption "enable flk sysctl tool";
+    localFlakeClone = mkOption {
+      type = types.string;
+      description = ''
+        A string reference to the local (editable) copy
+        of your system flake. This is used as reference
+        so that the scripts can do work on your flake,
+        such as for example updating inputs.
+      '';
+    };
+  };
+
+  config = mkIf cfg.enable {
+    environment.systemPackages = [
+      (flk { inherit pkgs; hostConfig = config; editableFlakeRoot = cfg.localFlakeClone; })
+    ];
+  };
+
+}