{
  inputs = {
    nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
    flake-utils.url = "github:numtide/flake-utils";
  };

  outputs =
    { nixpkgs, flake-utils, ... }:
    flake-utils.lib.eachDefaultSystem (
      system:
      let
        pkgs = nixpkgs.legacyPackages.${system};

        nativeBuildInputs = with pkgs; [
          go
          gopls
        ];
        buildInputs = with pkgs; [ ];
      in
      {
        devShells.default = pkgs.mkShell { inherit nativeBuildInputs buildInputs; };

        packages.default = pkgs.buildGoModule rec {
          name = "trading_post";
          src = ./.;

          inherit buildInputs;

          vendorHash = null;
        };
      }
    );
}