Undefined variable 'inputs'

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1

I’m trying to use nix-gaming on NixOS, but when I configure it no matter what I change it prompts:

error: undefined variable 'inputs'
       at /nix/store/vmrjamh31agjwv6r559xaqv64n7qj586-source/home.nix:108:5:
          107|     # fufexan/nix-gaming
          108|     inputs.nix-gaming.packages.${pkgs.system}.osu-lazer-bin
             |     ^
          109|     ];

I don’t know much about Nix yet, can anyone tell me how to modify it?
Here’s some of the configuration:

# flake.nix
{
  description = "A simple NixOS flake";

  inputs = {
    nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
    nix-gaming.url = "github:fufexan/nix-gaming";
    home-manager = {
    url = "github:nix-community/home-manager/master";
      inputs.nixpkgs.follows = "nixpkgs";
    };
  };

  outputs = { self, nixpkgs, home-manager, ... }@inputs: {
    nixosConfigurations.Frac2s = nixpkgs.lib.nixosSystem {
      system = "x86_64-linux";
      specialArgs = {inherit inputs;};
      modules = [
        ./configuration.nix
        home-manager.nixosModules.home-manager
        {
          home-manager.useGlobalPkgs = true;
          home-manager.useUserPackages = true;
          home-manager.users.weeds = import ./home.nix;
          home-manager.extraSpecialArgs = {inherit inputs;};
        }
      ];
    };
  };
}

# home.nix
{ config, pkgs, ... }:

{
  home.username = "weeds";
  home.homeDirectory = "/home/weeds";

  home.packages = 
    with pkgs;[
      (some pkgs here)
    ] ++ [
    # fufexan/nix-gaming
    inputs.nix-gaming.packages.${pkgs.system}.osu-lazer-bin
    ];
  };
  home.stateVersion = "25.05";
}

If anyone can help me, I’d be very grateful.

2

Add inputs here:

  # home.nix
- { config, pkgs, ... }:
+ { config, pkgs, inputs, ... }:
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