diff --git a/Gemfile b/Gemfile
index 466ec079..c9f735a3 100644
--- a/Gemfile
+++ b/Gemfile
@@ -76,6 +76,7 @@ gem 'webpacker'
 gem 'yaml_db', git: 'https://0xacab.org/sutty/yaml_db.git'
 gem 'kaminari'
 gem 'device_detector'
+gem 'dry-schema'
 
 # database
 gem 'hairtrigger'
diff --git a/Gemfile.lock b/Gemfile.lock
index 78563c84..7b4ac1ba 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -603,6 +603,7 @@ DEPENDENCIES
   distributed-press-api-client (~> 0.3.0rc0)
   dotenv-rails
   down
+  dry-schema
   ed25519
   email_address!
   exception_notification
diff --git a/app/models/site.rb b/app/models/site.rb
index 7b93184f..14e05e5d 100644
--- a/app/models/site.rb
+++ b/app/models/site.rb
@@ -11,6 +11,7 @@ class Site < ApplicationRecord
   include Site::BuildStats
   include Site::LayoutOrdering
   include Site::SocialDistributedPress
+  include Site::DefaultOptions
   include Tienda
 
   # Cifrar la llave privada que cifra y decifra campos ocultos.  Sutty
diff --git a/app/models/site/default_options.rb b/app/models/site/default_options.rb
new file mode 100644
index 00000000..3e392782
--- /dev/null
+++ b/app/models/site/default_options.rb
@@ -0,0 +1,44 @@
+# frozen_string_literal: true
+
+require 'dry-schema'
+
+class Site
+  # Las opciones por defecto se aplican durante la creación del sitio y
+  # luego se permite a les usuaries modificarlas según quieran.  Por el
+  # momento las opciones nuevas que aparezcan no modifican un sitio que
+  # ya existe.
+  module DefaultOptions
+    extend ActiveSupport::Concern
+
+    Schema = Dry::Schema.Params do
+      optional(:colaboracion_anonima).value(:bool)
+      optional(:contact).value(:bool)
+      optional(:acepta_invitades).value(:bool)
+      optional(:slugify_mode).value(included_in?: Jekyll::Utils::SLUGIFY_MODES)
+      optional(:pagination).value(:bool)
+    end
+
+    included do
+      validate :validate_options_from_theme!, if: :persisted?
+
+      # @return [Dry::Schema::Result]
+      def options_from_theme
+        @options_from_theme ||= Schema.call(data['sutty'])
+      end
+
+      def update_options_from_theme
+        return true if options_from_theme.to_h.blank?
+
+        update(**options_from_theme.to_h)
+      end
+
+      private
+
+      def validate_options_from_theme!
+        options_from_theme.errors.each do |error|
+          errors.add(:default_options, "#{error.path.map(&:to_s).join('/')} #{error} (#{error.input})")
+        end
+      end
+    end
+  end
+end
diff --git a/app/services/site_service.rb b/app/services/site_service.rb
index 5c37cfe3..8c3ea6b6 100644
--- a/app/services/site_service.rb
+++ b/app/services/site_service.rb
@@ -27,6 +27,7 @@ SiteService = Struct.new(:site, :usuarie, :params, keyword_init: true) do
       site.locales = [usuarie.lang] + I18n.available_locales
 
       site.save &&
+        site.update_options_from_theme &&
         site.config.write &&
         commit_config(action: :create) &&
         site.reset.nil? &&