{
  description = "Coinbase Pro Client.";

  inputs = {
    nixpkgs.url = "nixpkgs/nixos-22.05";
    utils.url = "github:numtide/flake-utils";
    clj-nix = {
      url = "github:jlesquembre/clj-nix";
      inputs.nixpkgs.follows = "nixpkgs";
    };
  };

  outputs = { self, nixpkgs, utils, clj-nix, ... }:
    utils.lib.eachDefaultSystem (system:
      let
        pkgs = nixpkgs.legacyPackages."${system}";
        cljpkgs = clj-nix.packages."${system}";
        update-deps = pkgs.writeShellScriptBin "update-deps.sh" ''
          ${clj-nix.packages."${system}".deps-lock}/bin/deps-lock
        '';
      in {
        packages = {
          coinbase-pro-client = cljpkgs.mkCljBin {
            projectSrc = ./.;
            name = "org.fudo/coinbase-pro.client";
            main-ns = "coinbase-pro.client.core";
            jdkRunner = pkgs.jdk17_headless;
            version = "0.1";
          };
        };

        defaultPackage = self.packages."${system}".coinbase-pro-client;

        devShell =
          pkgs.mkShell { buildInputs = with pkgs; [ clojure update-deps ]; };
      });
}