add NordVPN module instead of not working external flake

flake.lock

@@ -829,22 +829,6 @@
       }
     },
     "nixpkgs_6": {
-      "locked": {
-        "lastModified": 1742422364,
-        "narHash": "sha256-mNqIplmEohk5jRkqYqG19GA8MbQ/D4gQSK0Mu4LvfRQ=",
-        "owner": "NixOS",
-        "repo": "nixpkgs",
-        "rev": "a84ebe20c6bc2ecbcfb000a50776219f48d134cc",
-        "type": "github"
-      },
-      "original": {
-        "owner": "NixOS",
-        "ref": "nixos-unstable",
-        "repo": "nixpkgs",
-        "type": "github"
-      }
-    },
-    "nixpkgs_7": {
       "locked": {
         "lastModified": 1741513245,
         "narHash": "sha256-7rTAMNTY1xoBwz0h7ZMtEcd8LELk9R5TzBPoHuhNSCk=",
@@ -860,24 +844,6 @@
         "type": "github"
       }
     },
-    "nordvpn": {
-      "inputs": {
-        "nixpkgs": "nixpkgs_6"
-      },
-      "locked": {
-        "lastModified": 1742098294,
-        "narHash": "sha256-kszMKykXU1oZIn8RSDuBwIa5hY5om2wdy32KYgYKzs8=",
-        "owner": "m-lourenco0",
-        "repo": "nordvpn-flake",
-        "rev": "72594cb60df19951ee726dcad24ef0a9c5d29fbc",
-        "type": "github"
-      },
-      "original": {
-        "owner": "m-lourenco0",
-        "repo": "nordvpn-flake",
-        "type": "github"
-      }
-    },
     "nur": {
       "inputs": {
         "flake-parts": "flake-parts",
@@ -946,7 +912,6 @@
         "home-manager": "home-manager",
         "hyprspace": "hyprspace",
         "nixpkgs": "nixpkgs_5",
-        "nordvpn": "nordvpn",
         "stylix": "stylix"
       }
     },
@@ -1046,7 +1011,7 @@
         "git-hooks": "git-hooks",
         "gnome-shell": "gnome-shell",
         "home-manager": "home-manager_2",
-        "nixpkgs": "nixpkgs_7",
+        "nixpkgs": "nixpkgs_6",
         "nur": "nur",
         "systems": "systems_2",
         "tinted-foot": "tinted-foot",