Dry::Inflector future api

One thing I’m still not sure how to accomplish is composition of inflection rules.

Take the ActiveSupport inflections example:

Dry::Inflector::Inflections::ActiveSupport =
  Dry::Inflector::Inflections.new do |inflections|
    inflections.plural "person", "people"
  end

as_compatible_inflector = Dry::Inflector.new(inflections: Dry::Inflector::Inflections::ActiveSupport)
as_compatible_inflector.pluralize("people") # => "people"

How can I add my own inflection rules on top of the given Dry::Inflector::Inflections::ActiveSupport?
For the simplest case, just providing a block will be enough.
But if I want to stack 2 or 3 different rulesets that I don’t have direct access to their code?
For example Dry::Inflector::Inflections::Italian and Dry::Inflector::Inflections::ActiveSupportCompatible ?

Please let me know if I’m not being clear about it.

By the way, If we define a good way to accomplish this we will also solve internationalization in a roll.

cc: @jodosha @solnic @Ptico