{
  description = "Bevy controls library and examples";

  inputs = {
    nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
    hearth = {
      url = "git+https://gitea.hectic-lab.com/hinterland/hearth.git";
      inputs.nixpkgs.follows = "nixpkgs";
    };
    rust-overlay = {
      url = "github:oxalica/rust-overlay";
      inputs.nixpkgs.follows = "nixpkgs";
    };
  };

  outputs = { self, hearth, ... }@inputs:
  let
    flake = builtins.warn "Using the `flake` variable may produce a large source closure." ./.;
    lib = import ./lib { inherit inputs flake self; };
  in
  hearth.lib.forAllSystemsWithPkgs lib.composedOverlays ({ system, pkgs }: {
    legacyPackages.${system} = pkgs;
    packages.${system} = import ./package { inherit self inputs flake pkgs; };
    devShells.${system} = import ./devshell { inherit self inputs flake pkgs; };
  }) // {
    inherit lib;
  };
}