- how to incorporate the metadata processor to start with
- create a hook to programmatically configure the test
- create a plugin processor
- directory
- jar
- hooks for loading

- I could make an annotation that marked another class as its plugin discoverer, I could just add it to
  the component descriptor and when it's loaded we can add the discoverer, that would be simpler. I could

                }
            }

            builder.pluginRepositories(merged.values());
        }
    }

    /*
     * TODO: Whether duplicates should be removed looks like an option for the generated merger.
     */
    @Override
    protected void mergeBuildBase_Filters(
            BuildBase.Builder builder,
            BuildBase target,
            BuildBase source,