{
  description = "IMPHNEN Backend Service Nix Flake";

  inputs = {
    nixpkgs.url = "github:nixos/nixpkgs/nixos-unstable";
  };

  outputs =
    {
      self,
      nixpkgs,
    }:
    let
      supportedSystems = [
        "x86_64-linux"
        "x86_64-darwin"
        "aarch64-darwin"
        "aarch64-linux"
      ];
      pkgsFor =
        system:
        import nixpkgs {
          inherit system;
          config.allowUnfree = true;
        };
      forAllSystems = nixpkgs.lib.genAttrs supportedSystems;
    in
    {
      packages = forAllSystems (system: {
        default = (pkgsFor system).callPackage ./default.nix { };
      });

      overlays.default = final: _prev: {
        imphnen-backend = final.callPackage ./default.nix { };
      };

      nixosModules.backend = ./nixos-module.nix;

      devShells = forAllSystems (system: {
        default = (pkgsFor system).callPackage ./shell.nix { };
      });

      dockerImages = forAllSystems (system: {
        tryOutApi = (pkgsFor system).callPackage ./docker.nix { };
      });
    };
}