{ pkgs ? ( let inherit (builtins) fetchTree fromJSON readFile; inherit ((fromJSON (readFile ./flake.lock)).nodes) nixpkgs gomod2nix; in import (fetchTree nixpkgs.locked) { overlays = [ (import "${fetchTree gomod2nix.locked}/overlay.nix") ]; } ) , buildGoApplication ? pkgs.buildGoApplication }: buildGoApplication { pname = "upfast"; version = "1.3"; pwd = ./.; src = ./.; modules = ./gomod2nix.toml; }