Change executable_groups and add bin_dir hook

src/gmhc_config_schema.erl

@@ -66,7 +66,7 @@ pool_admin() ->
 workers() ->
     array(
       #{default => [#{executable => <<"mean29-generic">>,
-                      executable_group => <<"aecuckoo">>}],
+                      executable_group => <<"cpu">>}],
         description =>
             <<"Definitions of workers' configurations. If no worker are configured one worker "
               "is used as default, i.e. 'mean29-generic' executable without any extra args.">>},
@@ -83,9 +83,8 @@ workers() ->
                             "from faster CPU supporting AVX2 instructions).">>}),
             executable_group =>
                 str(#{description => <<"Group of executable binaries of the worker.">>,
-                      enum => [ <<"aecuckoo">>, <<"aecuckooprebuilt">>,
-                                <<"gmcuckoo">>, <<"cuda">>, <<"gajumine">> ],
-                      default => <<"aecuckoo">>}),
+                      enum => [ <<"cpu">>, <<"cuda">> ],
+                      default => <<"cpuo">>}),
             extra_args =>
                 str(#{description => <<"Extra arguments to pass to the worker executable binary. "
                                        "The safest choice is specifying no arguments i.e. empty string.">>,