refactor: use wrapper from nixpkgs instead of custom one

flake.nix

@@ -2,10 +2,10 @@
   description = "My development environment";
   inputs = {
     nixpkgs.url = "github:nixos/nixpkgs/nixos-unstable";
-    neovim-nightly-overlay.url = "github:nix-community/neovim-nightly-overlay";
 
     go-grip = {
       url = "github:guz013/go-grip";
+      inputs.nixpkgs.follows = "nixpkgs";
     };
   };
   outputs = {
@@ -19,40 +19,23 @@
       "x86_64-darwin"
       "aarch64-darwin"
     ];
-    overlays = [
-      inputs.neovim-nightly-overlay.overlays.default
-    ];
     forAllSystems = f:
       nixpkgs.lib.genAttrs systems (system: let
-        pkgs = import nixpkgs {inherit system overlays;};
+        pkgs = import nixpkgs {inherit system;};
       in
-        f system pkgs);
+        f {
+          inherit pkgs;
+          inherit (pkgs) lib;
+        });
   in {
-    packages = forAllSystems (system: pkgs: {
-      neovim = pkgs.callPackage ./neovim.nix {
-        go-grip = inputs.go-grip.packages.${system}.default;
-      };
-      default = self.packages.${system}.neovim;
-    });
-
-    legacyPackages = self.packages;
-
-    nixosModules = {
-      neovim = (import ./home-manager.nix) {inherit inputs self;};
-      default = self.nixosModules.neovim;
-    };
-
-    homeManagerModules = {
-      neovim = (import ./home-manager.nix) {inherit inputs self;};
-      default = self.homeManagerModules.neovim;
-    };
-
-    devShells = forAllSystems (system: pkgs: {
-      default = pkgs.mkShell {
-        buildInputs = with pkgs; [
-          alejandra
-          stylua
-        ];
+    packages = forAllSystems ({
+      pkgs,
+      lib,
+      ...
+    }: {
+      neovim = import ./package.nix {
+        inherit pkgs lib;
+        go-grip = inputs.go-grip.packages.${pkgs.system}.default;
       };
     });
   };