{
  description = "Go flake template";

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

  outputs = {
    self,
    nixpkgs,
  }: let
    allSystems = [
      "x86_64-linux"
      "aarch64-linux"
    ];
    forAllSystems = f:
      nixpkgs.lib.genAttrs allSystems (system:
        f {
          pkgs = import nixpkgs {inherit system;};
          inherit system;
        });
  in {
    packages = forAllSystems ({
      pkgs,
      system,
    }: {
      default = pkgs.callPackage ./nix/package.nix {};
      go-app = self.packages.${system}.default;
    });

    devShells = forAllSystems ({
      pkgs,
      system,
    }: {
      default = pkgs.callPackage ./nix/shell.nix {inherit (self.packages.${system}) go-app;};
    });
  };
}