{ 
  description = "System flake"; 
  inputs = { 
    nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable"; 
    home-manager = {
      url = "github:nix-community/home-manager";
      inputs.nixpkgs.follows = "nixpkgs";
    };
  }; 
  outputs = { self, nixpkgs, ... }@inputs: { 
    nixosConfigurations = { 
      mecca = nixpkgs.lib.nixosSystem { 
        system = "x86_64-linux"; 
        specialArgs = {inherit inputs;}; 
        modules = [ 
          ./hosts/common.nix
          ./hosts/mecca/configuration.nix 
        ]; 
      }; 
      syntheticnexus = nixpkgs.lib.nixosSystem { 
        system = "x86_64-linux"; 
        specialArgs = {inherit inputs;}; 
        modules = [ 
          ./hosts/common.nix  
          ./hosts/syntheticnexus/configuration.nix 
        ]; 
      }; 
    }; 
  }; 
}