it works :D

flake.lock

@@ -33,7 +33,28 @@
         "type": "github"
       }
     },
-    "helium": {
+    "flake-parts_2": {
+      "inputs": {
+        "nixpkgs-lib": [
+          "nixvim",
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1785627969,
+        "narHash": "sha256-4dtXQk/NMePegK/nWp5NSeuZKLATItOq61lpEvmXqGw=",
+        "owner": "hercules-ci",
+        "repo": "flake-parts",
+        "rev": "427bf4bd9435fdf21321c8cc628c24efc14c0f7a",
+        "type": "github"
+      },
+      "original": {
+        "owner": "hercules-ci",
+        "repo": "flake-parts",
+        "type": "github"
+      }
+    },
+    "helium-browser": {
       "inputs": {
         "nixpkgs": [
           "nixpkgs"
@@ -42,11 +63,11 @@
         "utils": "utils"
       },
       "locked": {
-        "lastModified": 1785641213,
-        "narHash": "sha256-V9HKF0TynM6AI1sTuClNFIyr0wIwC82zNQymJs7Ldlk=",
+        "lastModified": 1788065178,
+        "narHash": "sha256-ADzuZ/MqrdJOMucTux5j0QMxo0YnCHLxuZAYlK/wxPE=",
         "owner": "schembriaiden",
         "repo": "helium-browser-nix-flake",
-        "rev": "141470984a71fb22f1266fca6773d2a4d0991468",
+        "rev": "f1250fd4dcd8f22cb3d8aa1e8e00f56cc947e795",
         "type": "github"
       },
       "original": {
@@ -109,11 +130,11 @@
     },
     "nixpkgs-darwin": {
       "locked": {
-        "lastModified": 1785067121,
-        "narHash": "sha256-rdJdWxAcg5fnntU4DjPivPdVEN4F+VJavw+UWpEMeUI=",
+        "lastModified": 1787940818,
+        "narHash": "sha256-vFzVv78WlyEbTyV5BbrnicnV159wC0YPOcBe3QagyBI=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "329c3d2af6d1b618705150ea39f72c15eb4e613e",
+        "rev": "f6107e546a5012172d93e79f1f7950da02ad798f",
         "type": "github"
       },
       "original": {
@@ -154,15 +175,39 @@
         "type": "github"
       }
     },
+    "nixvim": {
+      "inputs": {
+        "flake-parts": "flake-parts_2",
+        "nixpkgs": [
+          "nixpkgs"
+        ],
+        "systems": "systems_2"
+      },
+      "locked": {
+        "lastModified": 1787536726,
+        "narHash": "sha256-aBh5Yk9tX8ZV4k10BJr2fvTq0/+iWGegaCMUOU7YKas=",
+        "owner": "nix-community",
+        "repo": "nixvim",
+        "rev": "e2c3f9f36326d07340626847543c557e2b95fb50",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-community",
+        "ref": "nixos-26.05",
+        "repo": "nixvim",
+        "type": "github"
+      }
+    },
     "root": {
       "inputs": {
         "flake-file": "flake-file",
         "flake-parts": "flake-parts",
-        "helium": "helium",
+        "helium-browser": "helium-browser",
         "home-manager": "home-manager",
         "import-tree": "import-tree",
         "nixpkgs": "nixpkgs",
-        "nixpkgs-unstable": "nixpkgs-unstable"
+        "nixpkgs-unstable": "nixpkgs-unstable",
+        "nixvim": "nixvim"
       }
     },
     "systems": {
@@ -180,6 +225,21 @@
         "type": "github"
       }
     },
+    "systems_2": {
+      "locked": {
+        "lastModified": 1681028828,
+        "narHash": "sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768=",
+        "owner": "nix-systems",
+        "repo": "default",
+        "rev": "da67096a3b9bf56a91d16901293e51ba5b49a27e",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-systems",
+        "repo": "default",
+        "type": "github"
+      }
+    },
     "utils": {
       "inputs": {
         "systems": "systems"