newSection(new RepositoriesBuilder()) {
            BuilderSupport.applyConfiguration(spec, it)
        }
        this
    }

    BuildFileBuilder configurations(@DelegatesTo(value = ConfigurationsBuilder, strategy = Closure.DELEGATE_FIRST) Closure<?> spec) {
        newSection(new ConfigurationsBuilder(configurationNames)) {

import java.util.function.Supplier

abstract class MultiSectionHandler<T> implements SectionBuilder {
    final List<SectionBuilder> sections = []

    public <B extends SectionBuilder> B newSection(@DelegatesTo.Target B section, @DelegatesTo(strategy = Closure.DELEGATE_FIRST) Closure<?> spec) {
        sections << section
        BuilderSupport.applyConfiguration(spec, section)
        section
    }

                    new_title = first_child.title or new_title
            # Creating a new section makes it render it collapsed by default
            # no idea why, so, let's just modify the existing one
            # new_section = Section(title=new_title, children=new_children)
            item.title = new_title
            item.children = new_children
            new_items.append(item)
        else:
            new_items.append(item)