rebar.config

{erl_opts, [
            debug_info,
            {parse_transform, lager_transform},
            warn_export_all,
            warn_untyped_record,
            inline_list_funcs,
            warn_deprecated_function,
            warn_export_vars,
            warn_obsolete_guard,
            warn_shadow_vars,
            warn_unused_function,
            warn_unused_import,
            warnings_as_errors
           ]
}.

{xref_checks, [
               undefined_function_calls,
               undefined_functions,
               locals_not_used,
               %% exports_not_used, %% too strict, esp. with regard to private API for test code
               deprecated_function_calls,
               deprecated_functions
              ]}.

{deps, [
        {lager,         {git, "https://github.com/erlang-lager/lager.git",      {tag, "3.2.4"}}},
        {poolboy,       {git, "https://github.com/devinus/poolboy.git",     {tag, "1.5.1"}}},
        {erlavro,       {git, "https://github.com/klarna/erlavro.git",      {tag, "2.4.0"}}}
       ]}.