{
  description = "Nixos Config Flake";

  inputs = {
    nixpkgs.url = "github:nixos/nixpkgs/nixos-25.05";
    nixpkgs-unstable.url = "github:nixos/nixpkgs/nixos-unstable";    
    nix-darwin.url = "github:nix-darwin/nix-darwin/master";
    nix-darwin.inputs.nixpkgs.follows = "nixpkgs-unstable";
    nix-snapd.url = "github:nix-community/nix-snapd";
    nix-snapd.inputs.pkgs-unstable.follows = "nixpkgs";

    home-manager = {
      url = "github:nix-community/home-manager/release-25.05";
      inputs.nixpkgs.follows = "nixpkgs";
    };

    home-manager-unstable = {
      url = "github:nix-community/home-manager/";
      inputs.nixpkgs.follows = "nixpkgs-unstable";
    };

    nixvim = {
      url = "github:nix-community/nixvim";
      inputs.nixpkgs.follows = "nixpkgs-unstable";
    };

    nixos-hardware = {
      url = "github:NixOS/nixos-hardware/master";
      inputs.nixpkgs.follows = "nixpkgs";
    };
  };

  outputs = 
    { self, 
      home-manager,
      home-manager-unstable,
      nix-darwin,
      nix-snapd,
      nixos-hardware, 
      nixpkgs, 
      nixpkgs-unstable,
      nixvim, 
      ... 
    }@inputs: 
    let
      system = "x86_64-linux";
      configPath = "/etc/nixos";
      pkgs-unstable = import nixpkgs-unstable {
        system = system;
              config.allowUnfree = true;
      };
    in
   {
    nixosConfigurations = {
      buildbox = nixpkgs.lib.nixosSystem {
        specialArgs = {inherit inputs pkgs-unstable configPath;} // {hostname = "buildbox";};
        system = system;
        modules = [
          ./hosts/buildbox/configuration.nix
          inputs.home-manager.nixosModules.default
        ];
      };

      eva-01 = nixpkgs.lib.nixosSystem {
        specialArgs = {inherit inputs pkgs-unstable configPath;} // {hostname = "eva-01";};
        system = system;
        modules = [
          ./hosts/eva-01/configuration.nix
          inputs.home-manager.nixosModules.default
          nixos-hardware.nixosModules.lenovo-thinkpad-x1-nano-gen1
          nix-snapd.nixosModules.default { services.snap.enable = true; }
        ];
      };

      eva-03 = nixpkgs.lib.nixosSystem {
        specialArgs = {inherit inputs pkgs-unstable configPath;} // {hostname = "eva-03";};
        system = system;
        modules = [
          ./hosts/eva-03/configuration.nix
          inputs.home-manager.nixosModules.default
        ];
      };
    };
    darwinConfigurations = {
      eva-02 = nix-darwin.lib.darwinSystem{
        specialArgs = {inherit inputs configPath;} // {hostname = "eva-02";};
        system = "aarch64-darwin";
        modules = [
          ./hosts/eva-02/configuration.nix
          inputs.home-manager-unstable.darwinModules.home-manager
        ];
      };
    };
  };
}