diff --git a/app/channels/application_cable/channel.rb b/app/channels/application_cable/channel.rb
index 88942fe..716be35 100644
--- a/app/channels/application_cable/channel.rb
+++ b/app/channels/application_cable/channel.rb
@@ -1,3 +1,5 @@
+# Copyright (C) 2024 Manuel Bustillo
+
 # Copyright (C) 2024-2025 LibreWeddingPlanner contributors
 
 # frozen_string_literal: true
diff --git a/app/channels/application_cable/connection.rb b/app/channels/application_cable/connection.rb
index ab575d6..286b699 100644
--- a/app/channels/application_cable/connection.rb
+++ b/app/channels/application_cable/connection.rb
@@ -1,3 +1,5 @@
+# Copyright (C) 2024 Manuel Bustillo
+
 # Copyright (C) 2024-2025 LibreWeddingPlanner contributors
 
 # frozen_string_literal: true
diff --git a/app/controllers/affinities_controller.rb b/app/controllers/affinities_controller.rb
index a62288c..00876b9 100644
--- a/app/controllers/affinities_controller.rb
+++ b/app/controllers/affinities_controller.rb
@@ -1,3 +1,5 @@
+# Copyright (C) 2024 Manuel Bustillo
+
 # Copyright (C) 2024-2025 LibreWeddingPlanner contributors
 
 # frozen_string_literal: true
diff --git a/app/controllers/application_controller.rb b/app/controllers/application_controller.rb
index 025dc85..a73aa87 100644
--- a/app/controllers/application_controller.rb
+++ b/app/controllers/application_controller.rb
@@ -1,3 +1,5 @@
+# Copyright (C) 2024 Manuel Bustillo
+
 # Copyright (C) 2024-2025 LibreWeddingPlanner contributors
 
 # frozen_string_literal: true
diff --git a/app/controllers/captcha_controller.rb b/app/controllers/captcha_controller.rb
index 6c3f3ca..98fcbcb 100644
--- a/app/controllers/captcha_controller.rb
+++ b/app/controllers/captcha_controller.rb
@@ -1,3 +1,5 @@
+# Copyright (C) 2024 Manuel Bustillo
+
 # Copyright (C) 2024-2025 LibreWeddingPlanner contributors
 
 # frozen_string_literal: true
diff --git a/app/controllers/expenses_controller.rb b/app/controllers/expenses_controller.rb
index 8b00ddb..093d691 100644
--- a/app/controllers/expenses_controller.rb
+++ b/app/controllers/expenses_controller.rb
@@ -1,3 +1,5 @@
+# Copyright (C) 2024 Manuel Bustillo
+
 # Copyright (C) 2024-2025 LibreWeddingPlanner contributors
 
 # frozen_string_literal: true
diff --git a/app/controllers/groups_controller.rb b/app/controllers/groups_controller.rb
index 08334aa..8baa833 100644
--- a/app/controllers/groups_controller.rb
+++ b/app/controllers/groups_controller.rb
@@ -1,3 +1,5 @@
+# Copyright (C) 2024 Manuel Bustillo
+
 # Copyright (C) 2024-2025 LibreWeddingPlanner contributors
 
 # frozen_string_literal: true
diff --git a/app/controllers/guests_controller.rb b/app/controllers/guests_controller.rb
index 9778795..7aee16d 100644
--- a/app/controllers/guests_controller.rb
+++ b/app/controllers/guests_controller.rb
@@ -1,3 +1,5 @@
+# Copyright (C) 2024 Manuel Bustillo
+
 # Copyright (C) 2024-2025 LibreWeddingPlanner contributors
 
 # frozen_string_literal: true
diff --git a/app/controllers/summary_controller.rb b/app/controllers/summary_controller.rb
index 0d3f655..9481a47 100644
--- a/app/controllers/summary_controller.rb
+++ b/app/controllers/summary_controller.rb
@@ -1,3 +1,5 @@
+# Copyright (C) 2024 Manuel Bustillo
+
 # Copyright (C) 2024-2025 LibreWeddingPlanner contributors
 
 # frozen_string_literal: true
diff --git a/app/controllers/tables_arrangements_controller.rb b/app/controllers/tables_arrangements_controller.rb
index c09d453..76a6774 100644
--- a/app/controllers/tables_arrangements_controller.rb
+++ b/app/controllers/tables_arrangements_controller.rb
@@ -1,3 +1,5 @@
+# Copyright (C) 2024 Manuel Bustillo
+
 # Copyright (C) 2024-2025 LibreWeddingPlanner contributors
 
 # frozen_string_literal: true
diff --git a/app/controllers/tokens_controller.rb b/app/controllers/tokens_controller.rb
index a0ee546..4b71df3 100644
--- a/app/controllers/tokens_controller.rb
+++ b/app/controllers/tokens_controller.rb
@@ -1,3 +1,5 @@
+# Copyright (C) 2024 Manuel Bustillo
+
 # Copyright (C) 2024-2025 LibreWeddingPlanner contributors
 
 # frozen_string_literal: true
diff --git a/app/controllers/users/confirmations_controller.rb b/app/controllers/users/confirmations_controller.rb
index 01eb91e..c078a1a 100644
--- a/app/controllers/users/confirmations_controller.rb
+++ b/app/controllers/users/confirmations_controller.rb
@@ -1,3 +1,5 @@
+# Copyright (C) 2024 Manuel Bustillo
+
 # Copyright (C) 2024-2025 LibreWeddingPlanner contributors
 
 # frozen_string_literal: true
diff --git a/app/controllers/users/registrations_controller.rb b/app/controllers/users/registrations_controller.rb
index f261e90..2a25268 100644
--- a/app/controllers/users/registrations_controller.rb
+++ b/app/controllers/users/registrations_controller.rb
@@ -1,3 +1,5 @@
+# Copyright (C) 2024 Manuel Bustillo
+
 # Copyright (C) 2024-2025 LibreWeddingPlanner contributors
 
 # frozen_string_literal: true
diff --git a/app/controllers/users/sessions_controller.rb b/app/controllers/users/sessions_controller.rb
index 4d7b6a8..8464417 100644
--- a/app/controllers/users/sessions_controller.rb
+++ b/app/controllers/users/sessions_controller.rb
@@ -1,3 +1,5 @@
+# Copyright (C) 2024 Manuel Bustillo
+
 # Copyright (C) 2024-2025 LibreWeddingPlanner contributors
 
 # frozen_string_literal: true
diff --git a/app/extensions/tree_node_extension.rb b/app/extensions/tree_node_extension.rb
index 6894dd7..443c658 100644
--- a/app/extensions/tree_node_extension.rb
+++ b/app/extensions/tree_node_extension.rb
@@ -1,3 +1,5 @@
+# Copyright (C) 2024 Manuel Bustillo
+
 # Copyright (C) 2024-2025 LibreWeddingPlanner contributors
 
 # frozen_string_literal: true
diff --git a/app/helpers/application_helper.rb b/app/helpers/application_helper.rb
index 9dbd98c..d0c1baa 100644
--- a/app/helpers/application_helper.rb
+++ b/app/helpers/application_helper.rb
@@ -1,3 +1,5 @@
+# Copyright (C) 2024 Manuel Bustillo
+
 # Copyright (C) 2024-2025 LibreWeddingPlanner contributors
 
 # frozen_string_literal: true
diff --git a/app/helpers/expenses_helper.rb b/app/helpers/expenses_helper.rb
index 0b8c324..05513f7 100644
--- a/app/helpers/expenses_helper.rb
+++ b/app/helpers/expenses_helper.rb
@@ -1,3 +1,5 @@
+# Copyright (C) 2024 Manuel Bustillo
+
 # Copyright (C) 2024-2025 LibreWeddingPlanner contributors
 
 # frozen_string_literal: true
diff --git a/app/helpers/groups_helper.rb b/app/helpers/groups_helper.rb
index feda408..85d797b 100644
--- a/app/helpers/groups_helper.rb
+++ b/app/helpers/groups_helper.rb
@@ -1,3 +1,5 @@
+# Copyright (C) 2024 Manuel Bustillo
+
 # Copyright (C) 2024-2025 LibreWeddingPlanner contributors
 
 # frozen_string_literal: true
diff --git a/app/helpers/guests_helper.rb b/app/helpers/guests_helper.rb
index 369b8ed..639cf38 100644
--- a/app/helpers/guests_helper.rb
+++ b/app/helpers/guests_helper.rb
@@ -1,3 +1,5 @@
+# Copyright (C) 2024 Manuel Bustillo
+
 # Copyright (C) 2024-2025 LibreWeddingPlanner contributors
 
 # frozen_string_literal: true
diff --git a/app/helpers/tables_arrangements_helper.rb b/app/helpers/tables_arrangements_helper.rb
index 6353e46..a039c6e 100644
--- a/app/helpers/tables_arrangements_helper.rb
+++ b/app/helpers/tables_arrangements_helper.rb
@@ -1,3 +1,5 @@
+# Copyright (C) 2024 Manuel Bustillo
+
 # Copyright (C) 2024-2025 LibreWeddingPlanner contributors
 
 # frozen_string_literal: true
diff --git a/app/jobs/application_job.rb b/app/jobs/application_job.rb
index 561fb56..62fb66f 100644
--- a/app/jobs/application_job.rb
+++ b/app/jobs/application_job.rb
@@ -1,3 +1,5 @@
+# Copyright (C) 2024 Manuel Bustillo
+
 # Copyright (C) 2024-2025 LibreWeddingPlanner contributors
 
 # frozen_string_literal: true
diff --git a/app/jobs/table_simulator_job.rb b/app/jobs/table_simulator_job.rb
index 51b7256..56a59d0 100644
--- a/app/jobs/table_simulator_job.rb
+++ b/app/jobs/table_simulator_job.rb
@@ -1,3 +1,5 @@
+# Copyright (C) 2024 Manuel Bustillo
+
 # Copyright (C) 2024-2025 LibreWeddingPlanner contributors
 
 # frozen_string_literal: true
diff --git a/app/mailers/application_mailer.rb b/app/mailers/application_mailer.rb
index b28db31..706222d 100644
--- a/app/mailers/application_mailer.rb
+++ b/app/mailers/application_mailer.rb
@@ -1,3 +1,5 @@
+# Copyright (C) 2024 Manuel Bustillo
+
 # Copyright (C) 2024-2025 LibreWeddingPlanner contributors
 
 # frozen_string_literal: true
diff --git a/app/models/application_record.rb b/app/models/application_record.rb
index 61b9d31..d6fee04 100644
--- a/app/models/application_record.rb
+++ b/app/models/application_record.rb
@@ -1,3 +1,5 @@
+# Copyright (C) 2024 Manuel Bustillo
+
 # Copyright (C) 2024-2025 LibreWeddingPlanner contributors
 
 # frozen_string_literal: true
diff --git a/app/models/expense.rb b/app/models/expense.rb
index 66b32f3..f810d1c 100644
--- a/app/models/expense.rb
+++ b/app/models/expense.rb
@@ -1,3 +1,5 @@
+# Copyright (C) 2024 Manuel Bustillo
+
 # Copyright (C) 2024-2025 LibreWeddingPlanner contributors
 
 # frozen_string_literal: true
diff --git a/app/models/group.rb b/app/models/group.rb
index 2db28ed..92d88a6 100644
--- a/app/models/group.rb
+++ b/app/models/group.rb
@@ -1,3 +1,5 @@
+# Copyright (C) 2024 Manuel Bustillo
+
 # Copyright (C) 2024-2025 LibreWeddingPlanner contributors
 
 # frozen_string_literal: true
diff --git a/app/models/group_affinity.rb b/app/models/group_affinity.rb
index 8e70d59..b94e0c5 100644
--- a/app/models/group_affinity.rb
+++ b/app/models/group_affinity.rb
@@ -1,3 +1,5 @@
+# Copyright (C) 2024 Manuel Bustillo
+
 # Copyright (C) 2024-2025 LibreWeddingPlanner contributors
 
 # frozen_string_literal: true
diff --git a/app/models/guest.rb b/app/models/guest.rb
index ad0542f..c9eb0b0 100644
--- a/app/models/guest.rb
+++ b/app/models/guest.rb
@@ -1,3 +1,5 @@
+# Copyright (C) 2024 Manuel Bustillo
+
 # Copyright (C) 2024-2025 LibreWeddingPlanner contributors
 
 # frozen_string_literal: true
diff --git a/app/models/seat.rb b/app/models/seat.rb
index 9c31c42..71e9d77 100644
--- a/app/models/seat.rb
+++ b/app/models/seat.rb
@@ -1,3 +1,5 @@
+# Copyright (C) 2024 Manuel Bustillo
+
 # Copyright (C) 2024-2025 LibreWeddingPlanner contributors
 
 # frozen_string_literal: true
diff --git a/app/models/tables_arrangement.rb b/app/models/tables_arrangement.rb
index adece9a..3e6aef9 100644
--- a/app/models/tables_arrangement.rb
+++ b/app/models/tables_arrangement.rb
@@ -1,3 +1,5 @@
+# Copyright (C) 2024 Manuel Bustillo
+
 # Copyright (C) 2024-2025 LibreWeddingPlanner contributors
 
 # frozen_string_literal: true
diff --git a/app/models/user.rb b/app/models/user.rb
index ff46fff..d263c97 100644
--- a/app/models/user.rb
+++ b/app/models/user.rb
@@ -1,3 +1,5 @@
+# Copyright (C) 2024 Manuel Bustillo
+
 # Copyright (C) 2024-2025 LibreWeddingPlanner contributors
 
 # frozen_string_literal: true
diff --git a/app/models/wedding.rb b/app/models/wedding.rb
index 83525b5..4368c50 100644
--- a/app/models/wedding.rb
+++ b/app/models/wedding.rb
@@ -1,3 +1,5 @@
+# Copyright (C) 2024 Manuel Bustillo
+
 # Copyright (C) 2024-2025 LibreWeddingPlanner contributors
 
 # frozen_string_literal: true
diff --git a/app/queries/expenses/total_query.rb b/app/queries/expenses/total_query.rb
index ae4fe65..0ba9f5f 100644
--- a/app/queries/expenses/total_query.rb
+++ b/app/queries/expenses/total_query.rb
@@ -1,3 +1,5 @@
+# Copyright (C) 2024 Manuel Bustillo
+
 # Copyright (C) 2024-2025 LibreWeddingPlanner contributors
 
 # frozen_string_literal: true
diff --git a/app/queries/groups/summary_query.rb b/app/queries/groups/summary_query.rb
index 81c91b4..e1b7138 100644
--- a/app/queries/groups/summary_query.rb
+++ b/app/queries/groups/summary_query.rb
@@ -1,3 +1,5 @@
+# Copyright (C) 2024 Manuel Bustillo
+
 # Copyright (C) 2024-2025 LibreWeddingPlanner contributors
 
 # frozen_string_literal: true
diff --git a/app/serializers/serializable_group.rb b/app/serializers/serializable_group.rb
index b3e2258..4572c78 100644
--- a/app/serializers/serializable_group.rb
+++ b/app/serializers/serializable_group.rb
@@ -1,3 +1,5 @@
+# Copyright (C) 2024 Manuel Bustillo
+
 # Copyright (C) 2024-2025 LibreWeddingPlanner contributors
 
 # frozen_string_literal: true
diff --git a/app/serializers/serializable_guest.rb b/app/serializers/serializable_guest.rb
index ee4bac1..3e95236 100644
--- a/app/serializers/serializable_guest.rb
+++ b/app/serializers/serializable_guest.rb
@@ -1,3 +1,5 @@
+# Copyright (C) 2024 Manuel Bustillo
+
 # Copyright (C) 2024-2025 LibreWeddingPlanner contributors
 
 # frozen_string_literal: true
diff --git a/app/services/affinity_groups_hierarchy.rb b/app/services/affinity_groups_hierarchy.rb
index ef47845..783c7ed 100644
--- a/app/services/affinity_groups_hierarchy.rb
+++ b/app/services/affinity_groups_hierarchy.rb
@@ -1,3 +1,5 @@
+# Copyright (C) 2024 Manuel Bustillo
+
 # Copyright (C) 2024-2025 LibreWeddingPlanner contributors
 
 # frozen_string_literal: true
diff --git a/app/services/libre_captcha.rb b/app/services/libre_captcha.rb
index a3843da..d644ba2 100644
--- a/app/services/libre_captcha.rb
+++ b/app/services/libre_captcha.rb
@@ -1,3 +1,5 @@
+# Copyright (C) 2024 Manuel Bustillo
+
 # Copyright (C) 2024-2025 LibreWeddingPlanner contributors
 
 # frozen_string_literal: true
diff --git a/app/services/tables/discomfort_calculator.rb b/app/services/tables/discomfort_calculator.rb
index adae828..bd35087 100644
--- a/app/services/tables/discomfort_calculator.rb
+++ b/app/services/tables/discomfort_calculator.rb
@@ -1,3 +1,5 @@
+# Copyright (C) 2024 Manuel Bustillo
+
 # Copyright (C) 2024-2025 LibreWeddingPlanner contributors
 
 # frozen_string_literal: true
diff --git a/app/services/tables/distribution.rb b/app/services/tables/distribution.rb
index aca8618..7b4762f 100644
--- a/app/services/tables/distribution.rb
+++ b/app/services/tables/distribution.rb
@@ -1,3 +1,5 @@
+# Copyright (C) 2024 Manuel Bustillo
+
 # Copyright (C) 2024-2025 LibreWeddingPlanner contributors
 
 # frozen_string_literal: true
diff --git a/app/services/tables/shift.rb b/app/services/tables/shift.rb
index d5592d9..45e7150 100644
--- a/app/services/tables/shift.rb
+++ b/app/services/tables/shift.rb
@@ -1,3 +1,5 @@
+# Copyright (C) 2024 Manuel Bustillo
+
 # Copyright (C) 2024-2025 LibreWeddingPlanner contributors
 
 # frozen_string_literal: true
diff --git a/app/services/tables/swap.rb b/app/services/tables/swap.rb
index 04abc18..230959d 100644
--- a/app/services/tables/swap.rb
+++ b/app/services/tables/swap.rb
@@ -1,3 +1,5 @@
+# Copyright (C) 2024 Manuel Bustillo
+
 # Copyright (C) 2024-2025 LibreWeddingPlanner contributors
 
 # frozen_string_literal: true
diff --git a/app/services/tables/table.rb b/app/services/tables/table.rb
index cc05ea0..3628c49 100644
--- a/app/services/tables/table.rb
+++ b/app/services/tables/table.rb
@@ -1,3 +1,5 @@
+# Copyright (C) 2024 Manuel Bustillo
+
 # Copyright (C) 2024-2025 LibreWeddingPlanner contributors
 
 # frozen_string_literal: true
diff --git a/app/services/vns/engine.rb b/app/services/vns/engine.rb
index d66c80b..fe1ff91 100644
--- a/app/services/vns/engine.rb
+++ b/app/services/vns/engine.rb
@@ -1,3 +1,5 @@
+# Copyright (C) 2024 Manuel Bustillo
+
 # Copyright (C) 2024-2025 LibreWeddingPlanner contributors
 
 # frozen_string_literal: true
diff --git a/app/views/layouts/mailer.html.erb b/app/views/layouts/mailer.html.erb
index 32b0c16..4eee621 100644
--- a/app/views/layouts/mailer.html.erb
+++ b/app/views/layouts/mailer.html.erb
@@ -1,3 +1,5 @@
+<%# Copyright (C) 2024 Manuel Bustillo %>
+
 <%# Copyright (C) 2024-2025 LibreWeddingPlanner contributors %>
 
 <!DOCTYPE html>
diff --git a/app/views/layouts/mailer.text.erb b/app/views/layouts/mailer.text.erb
index 9bdce1a..62b17c3 100644
--- a/app/views/layouts/mailer.text.erb
+++ b/app/views/layouts/mailer.text.erb
@@ -1,3 +1,5 @@
+<%# Copyright (C) 2024 Manuel Bustillo %>
+
 <%# Copyright (C) 2024-2025 LibreWeddingPlanner contributors %>
 
 <%= yield %>
diff --git a/app/views/users/mailer/confirmation_instructions.html.erb b/app/views/users/mailer/confirmation_instructions.html.erb
index cd3b2f1..688f1bc 100644
--- a/app/views/users/mailer/confirmation_instructions.html.erb
+++ b/app/views/users/mailer/confirmation_instructions.html.erb
@@ -1,3 +1,5 @@
+<%# Copyright (C) 2024 Manuel Bustillo %>
+
 <%# Copyright (C) 2024-2025 LibreWeddingPlanner contributors %>
 
 <p>Welcome <%= @email %>!</p>
diff --git a/app/views/users/mailer/email_changed.html.erb b/app/views/users/mailer/email_changed.html.erb
index f5f2998..8935bc0 100644
--- a/app/views/users/mailer/email_changed.html.erb
+++ b/app/views/users/mailer/email_changed.html.erb
@@ -1,3 +1,5 @@
+<%# Copyright (C) 2024 Manuel Bustillo %>
+
 <%# Copyright (C) 2024-2025 LibreWeddingPlanner contributors %>
 
 <p>Hello <%= @email %>!</p>
diff --git a/app/views/users/mailer/password_change.html.erb b/app/views/users/mailer/password_change.html.erb
index 1181727..3d72a19 100644
--- a/app/views/users/mailer/password_change.html.erb
+++ b/app/views/users/mailer/password_change.html.erb
@@ -1,3 +1,5 @@
+<%# Copyright (C) 2024 Manuel Bustillo %>
+
 <%# Copyright (C) 2024-2025 LibreWeddingPlanner contributors %>
 
 <p>Hello <%= @resource.email %>!</p>
diff --git a/app/views/users/mailer/reset_password_instructions.html.erb b/app/views/users/mailer/reset_password_instructions.html.erb
index 95bc588..fc45ec9 100644
--- a/app/views/users/mailer/reset_password_instructions.html.erb
+++ b/app/views/users/mailer/reset_password_instructions.html.erb
@@ -1,3 +1,5 @@
+<%# Copyright (C) 2024 Manuel Bustillo %>
+
 <%# Copyright (C) 2024-2025 LibreWeddingPlanner contributors %>
 
 <p>Hello <%= @resource.email %>!</p>
diff --git a/app/views/users/mailer/unlock_instructions.html.erb b/app/views/users/mailer/unlock_instructions.html.erb
index 3efb341..fddd365 100644
--- a/app/views/users/mailer/unlock_instructions.html.erb
+++ b/app/views/users/mailer/unlock_instructions.html.erb
@@ -1,3 +1,5 @@
+<%# Copyright (C) 2024 Manuel Bustillo %>
+
 <%# Copyright (C) 2024-2025 LibreWeddingPlanner contributors %>
 
 <p>Hello <%= @resource.email %>!</p>
diff --git a/config/application.rb b/config/application.rb
index 1795a6f..32fbf95 100644
--- a/config/application.rb
+++ b/config/application.rb
@@ -1,3 +1,5 @@
+# Copyright (C) 2024 Manuel Bustillo
+
 # Copyright (C) 2024-2025 LibreWeddingPlanner contributors
 
 require_relative 'boot'
diff --git a/config/boot.rb b/config/boot.rb
index 4bebfef..59676bc 100644
--- a/config/boot.rb
+++ b/config/boot.rb
@@ -1,3 +1,5 @@
+# Copyright (C) 2024 Manuel Bustillo
+
 # Copyright (C) 2024-2025 LibreWeddingPlanner contributors
 
 ENV["BUNDLE_GEMFILE"] ||= File.expand_path("../Gemfile", __dir__)
diff --git a/config/environment.rb b/config/environment.rb
index 49c0fb1..df4bf2e 100644
--- a/config/environment.rb
+++ b/config/environment.rb
@@ -1,3 +1,5 @@
+# Copyright (C) 2024 Manuel Bustillo
+
 # Copyright (C) 2024-2025 LibreWeddingPlanner contributors
 
 # Load the Rails application.
diff --git a/config/environments/development.rb b/config/environments/development.rb
index 232e88e..b0f2198 100644
--- a/config/environments/development.rb
+++ b/config/environments/development.rb
@@ -1,3 +1,5 @@
+# Copyright (C) 2024 Manuel Bustillo
+
 # Copyright (C) 2024-2025 LibreWeddingPlanner contributors
 
 require "active_support/core_ext/integer/time"
diff --git a/config/environments/production.rb b/config/environments/production.rb
index 4db7dca..59e22d6 100644
--- a/config/environments/production.rb
+++ b/config/environments/production.rb
@@ -1,3 +1,5 @@
+# Copyright (C) 2024 Manuel Bustillo
+
 # Copyright (C) 2024-2025 LibreWeddingPlanner contributors
 
 require "active_support/core_ext/integer/time"
diff --git a/config/environments/test.rb b/config/environments/test.rb
index 0982e19..28b85d7 100644
--- a/config/environments/test.rb
+++ b/config/environments/test.rb
@@ -1,3 +1,5 @@
+# Copyright (C) 2024 Manuel Bustillo
+
 # Copyright (C) 2024-2025 LibreWeddingPlanner contributors
 
 require "active_support/core_ext/integer/time"
diff --git a/config/importmap.rb b/config/importmap.rb
index 7ec75cd..19991f1 100644
--- a/config/importmap.rb
+++ b/config/importmap.rb
@@ -1,3 +1,5 @@
+# Copyright (C) 2024 Manuel Bustillo
+
 # Copyright (C) 2024-2025 LibreWeddingPlanner contributors
 
 # Pin npm packages by running ./bin/importmap
diff --git a/config/initializers/acts_as_tenant.rb b/config/initializers/acts_as_tenant.rb
index fd8890d..72510c4 100644
--- a/config/initializers/acts_as_tenant.rb
+++ b/config/initializers/acts_as_tenant.rb
@@ -1,3 +1,5 @@
+# Copyright (C) 2024 Manuel Bustillo
+
 # Copyright (C) 2024-2025 LibreWeddingPlanner contributors
 
 ActsAsTenant.configure do |config|
diff --git a/config/initializers/assets.rb b/config/initializers/assets.rb
index 4772d1a..8e722ce 100644
--- a/config/initializers/assets.rb
+++ b/config/initializers/assets.rb
@@ -1,3 +1,5 @@
+# Copyright (C) 2024 Manuel Bustillo
+
 # Copyright (C) 2024-2025 LibreWeddingPlanner contributors
 
 # Be sure to restart your server when you modify this file.
diff --git a/config/initializers/colors.rb b/config/initializers/colors.rb
index ea065fa..f1bbdd2 100644
--- a/config/initializers/colors.rb
+++ b/config/initializers/colors.rb
@@ -1,3 +1,5 @@
+# Copyright (C) 2024 Manuel Bustillo
+
 # Copyright (C) 2024-2025 LibreWeddingPlanner contributors
 
 Chroma.define_palette :decreasing_saturation do
diff --git a/config/initializers/content_security_policy.rb b/config/initializers/content_security_policy.rb
index 8798db8..3f9221f 100644
--- a/config/initializers/content_security_policy.rb
+++ b/config/initializers/content_security_policy.rb
@@ -1,3 +1,5 @@
+# Copyright (C) 2024 Manuel Bustillo
+
 # Copyright (C) 2024-2025 LibreWeddingPlanner contributors
 
 # Be sure to restart your server when you modify this file.
diff --git a/config/initializers/cors.rb b/config/initializers/cors.rb
index ce186ed..565fe09 100644
--- a/config/initializers/cors.rb
+++ b/config/initializers/cors.rb
@@ -1,3 +1,5 @@
+# Copyright (C) 2024 Manuel Bustillo
+
 # Copyright (C) 2024-2025 LibreWeddingPlanner contributors
 
 # config/initializers/cors.rb
diff --git a/config/initializers/devise.rb b/config/initializers/devise.rb
index 3977aa9..0ecbf5e 100644
--- a/config/initializers/devise.rb
+++ b/config/initializers/devise.rb
@@ -1,3 +1,5 @@
+# Copyright (C) 2024 Manuel Bustillo
+
 # Copyright (C) 2024-2025 LibreWeddingPlanner contributors
 
 # frozen_string_literal: true
diff --git a/config/initializers/filter_parameter_logging.rb b/config/initializers/filter_parameter_logging.rb
index 1be5be3..e184d9a 100644
--- a/config/initializers/filter_parameter_logging.rb
+++ b/config/initializers/filter_parameter_logging.rb
@@ -1,3 +1,5 @@
+# Copyright (C) 2024 Manuel Bustillo
+
 # Copyright (C) 2024-2025 LibreWeddingPlanner contributors
 
 # Be sure to restart your server when you modify this file.
diff --git a/config/initializers/inflections.rb b/config/initializers/inflections.rb
index 2a6b3c4..0f9a0ea 100644
--- a/config/initializers/inflections.rb
+++ b/config/initializers/inflections.rb
@@ -1,3 +1,5 @@
+# Copyright (C) 2024 Manuel Bustillo
+
 # Copyright (C) 2024-2025 LibreWeddingPlanner contributors
 
 # Be sure to restart your server when you modify this file.
diff --git a/config/initializers/permissions_policy.rb b/config/initializers/permissions_policy.rb
index f281e9b..af956f8 100644
--- a/config/initializers/permissions_policy.rb
+++ b/config/initializers/permissions_policy.rb
@@ -1,3 +1,5 @@
+# Copyright (C) 2024 Manuel Bustillo
+
 # Copyright (C) 2024-2025 LibreWeddingPlanner contributors
 
 # Be sure to restart your server when you modify this file.
diff --git a/config/initializers/rswag_api.rb b/config/initializers/rswag_api.rb
index 42deb17..4c11988 100644
--- a/config/initializers/rswag_api.rb
+++ b/config/initializers/rswag_api.rb
@@ -1,3 +1,5 @@
+# Copyright (C) 2024 Manuel Bustillo
+
 # Copyright (C) 2024-2025 LibreWeddingPlanner contributors
 
 Rswag::Api.configure do |c|
diff --git a/config/initializers/rswag_ui.rb b/config/initializers/rswag_ui.rb
index a50e133..dec08ce 100644
--- a/config/initializers/rswag_ui.rb
+++ b/config/initializers/rswag_ui.rb
@@ -1,3 +1,5 @@
+# Copyright (C) 2024 Manuel Bustillo
+
 # Copyright (C) 2024-2025 LibreWeddingPlanner contributors
 
 Rswag::Ui.configure do |c|
diff --git a/config/initializers/ruby_extensions.rb b/config/initializers/ruby_extensions.rb
index 47091de..9fb7af1 100644
--- a/config/initializers/ruby_extensions.rb
+++ b/config/initializers/ruby_extensions.rb
@@ -1,3 +1,5 @@
+# Copyright (C) 2024 Manuel Bustillo
+
 # Copyright (C) 2024-2025 LibreWeddingPlanner contributors
 
 class Numeric
diff --git a/config/puma.rb b/config/puma.rb
index 128df0b..3d8dbc2 100644
--- a/config/puma.rb
+++ b/config/puma.rb
@@ -1,3 +1,5 @@
+# Copyright (C) 2024 Manuel Bustillo
+
 # Copyright (C) 2024-2025 LibreWeddingPlanner contributors
 
 # This configuration file will be evaluated by Puma. The top-level methods that
diff --git a/config/routes.rb b/config/routes.rb
index bb2be8f..cf97731 100644
--- a/config/routes.rb
+++ b/config/routes.rb
@@ -1,3 +1,5 @@
+# Copyright (C) 2024 Manuel Bustillo
+
 # Copyright (C) 2024-2025 LibreWeddingPlanner contributors
 
 Rails.application.routes.draw do
diff --git a/db/migrate/20240711175425_create_expenses.rb b/db/migrate/20240711175425_create_expenses.rb
index 52fa269..1538790 100644
--- a/db/migrate/20240711175425_create_expenses.rb
+++ b/db/migrate/20240711175425_create_expenses.rb
@@ -1,3 +1,5 @@
+# Copyright (C) 2024 Manuel Bustillo
+
 # Copyright (C) 2024-2025 LibreWeddingPlanner contributors
 
 class CreateExpenses < ActiveRecord::Migration[7.1]
diff --git a/db/migrate/20240711180753_create_guests.rb b/db/migrate/20240711180753_create_guests.rb
index d2f876a..6597d34 100644
--- a/db/migrate/20240711180753_create_guests.rb
+++ b/db/migrate/20240711180753_create_guests.rb
@@ -1,3 +1,5 @@
+# Copyright (C) 2024 Manuel Bustillo
+
 # Copyright (C) 2024-2025 LibreWeddingPlanner contributors
 
 class CreateGuests < ActiveRecord::Migration[7.1]
diff --git a/db/migrate/20240711181626_acts_as_taggable_on_migration.acts_as_taggable_on_engine.rb b/db/migrate/20240711181626_acts_as_taggable_on_migration.acts_as_taggable_on_engine.rb
index f1709ca..a614c83 100644
--- a/db/migrate/20240711181626_acts_as_taggable_on_migration.acts_as_taggable_on_engine.rb
+++ b/db/migrate/20240711181626_acts_as_taggable_on_migration.acts_as_taggable_on_engine.rb
@@ -1,3 +1,5 @@
+# Copyright (C) 2024 Manuel Bustillo
+
 # Copyright (C) 2024-2025 LibreWeddingPlanner contributors
 
 # frozen_string_literal: true
diff --git a/db/migrate/20240711181627_add_missing_unique_indices.acts_as_taggable_on_engine.rb b/db/migrate/20240711181627_add_missing_unique_indices.acts_as_taggable_on_engine.rb
index a1f7d1c..ab62f5f 100644
--- a/db/migrate/20240711181627_add_missing_unique_indices.acts_as_taggable_on_engine.rb
+++ b/db/migrate/20240711181627_add_missing_unique_indices.acts_as_taggable_on_engine.rb
@@ -1,3 +1,5 @@
+# Copyright (C) 2024 Manuel Bustillo
+
 # Copyright (C) 2024-2025 LibreWeddingPlanner contributors
 
 # frozen_string_literal: true
diff --git a/db/migrate/20240711181628_add_taggings_counter_cache_to_tags.acts_as_taggable_on_engine.rb b/db/migrate/20240711181628_add_taggings_counter_cache_to_tags.acts_as_taggable_on_engine.rb
index 078b0c0..1d9f0e9 100644
--- a/db/migrate/20240711181628_add_taggings_counter_cache_to_tags.acts_as_taggable_on_engine.rb
+++ b/db/migrate/20240711181628_add_taggings_counter_cache_to_tags.acts_as_taggable_on_engine.rb
@@ -1,3 +1,5 @@
+# Copyright (C) 2024 Manuel Bustillo
+
 # Copyright (C) 2024-2025 LibreWeddingPlanner contributors
 
 # frozen_string_literal: true
diff --git a/db/migrate/20240711181629_add_missing_taggable_index.acts_as_taggable_on_engine.rb b/db/migrate/20240711181629_add_missing_taggable_index.acts_as_taggable_on_engine.rb
index 126aa38..0d79854 100644
--- a/db/migrate/20240711181629_add_missing_taggable_index.acts_as_taggable_on_engine.rb
+++ b/db/migrate/20240711181629_add_missing_taggable_index.acts_as_taggable_on_engine.rb
@@ -1,3 +1,5 @@
+# Copyright (C) 2024 Manuel Bustillo
+
 # Copyright (C) 2024-2025 LibreWeddingPlanner contributors
 
 # frozen_string_literal: true
diff --git a/db/migrate/20240711181630_change_collation_for_tag_names.acts_as_taggable_on_engine.rb b/db/migrate/20240711181630_change_collation_for_tag_names.acts_as_taggable_on_engine.rb
index fec8036..e643bb4 100644
--- a/db/migrate/20240711181630_change_collation_for_tag_names.acts_as_taggable_on_engine.rb
+++ b/db/migrate/20240711181630_change_collation_for_tag_names.acts_as_taggable_on_engine.rb
@@ -1,3 +1,5 @@
+# Copyright (C) 2024 Manuel Bustillo
+
 # Copyright (C) 2024-2025 LibreWeddingPlanner contributors
 
 # frozen_string_literal: true
diff --git a/db/migrate/20240711181631_add_missing_indexes_on_taggings.acts_as_taggable_on_engine.rb b/db/migrate/20240711181631_add_missing_indexes_on_taggings.acts_as_taggable_on_engine.rb
index 5f98782..fa60128 100644
--- a/db/migrate/20240711181631_add_missing_indexes_on_taggings.acts_as_taggable_on_engine.rb
+++ b/db/migrate/20240711181631_add_missing_indexes_on_taggings.acts_as_taggable_on_engine.rb
@@ -1,3 +1,5 @@
+# Copyright (C) 2024 Manuel Bustillo
+
 # Copyright (C) 2024-2025 LibreWeddingPlanner contributors
 
 # frozen_string_literal: true
diff --git a/db/migrate/20240711181632_add_tenant_to_taggings.acts_as_taggable_on_engine.rb b/db/migrate/20240711181632_add_tenant_to_taggings.acts_as_taggable_on_engine.rb
index 16fc678..fa8df4d 100644
--- a/db/migrate/20240711181632_add_tenant_to_taggings.acts_as_taggable_on_engine.rb
+++ b/db/migrate/20240711181632_add_tenant_to_taggings.acts_as_taggable_on_engine.rb
@@ -1,3 +1,5 @@
+# Copyright (C) 2024 Manuel Bustillo
+
 # Copyright (C) 2024-2025 LibreWeddingPlanner contributors
 
 # frozen_string_literal: true
diff --git a/db/migrate/20240724181756_create_tables_arrangements.rb b/db/migrate/20240724181756_create_tables_arrangements.rb
index 81defbc..ed278c8 100644
--- a/db/migrate/20240724181756_create_tables_arrangements.rb
+++ b/db/migrate/20240724181756_create_tables_arrangements.rb
@@ -1,3 +1,5 @@
+# Copyright (C) 2024 Manuel Bustillo
+
 # Copyright (C) 2024-2025 LibreWeddingPlanner contributors
 
 class CreateTablesArrangements < ActiveRecord::Migration[7.1]
diff --git a/db/migrate/20240724181853_create_seats.rb b/db/migrate/20240724181853_create_seats.rb
index a4fa0ae..462df84 100644
--- a/db/migrate/20240724181853_create_seats.rb
+++ b/db/migrate/20240724181853_create_seats.rb
@@ -1,3 +1,5 @@
+# Copyright (C) 2024 Manuel Bustillo
+
 # Copyright (C) 2024-2025 LibreWeddingPlanner contributors
 
 class CreateSeats < ActiveRecord::Migration[7.1]
diff --git a/db/migrate/20240811142121_create_groups.rb b/db/migrate/20240811142121_create_groups.rb
index cad993a..8380c36 100644
--- a/db/migrate/20240811142121_create_groups.rb
+++ b/db/migrate/20240811142121_create_groups.rb
@@ -1,3 +1,5 @@
+# Copyright (C) 2024 Manuel Bustillo
+
 # Copyright (C) 2024-2025 LibreWeddingPlanner contributors
 
 class CreateGroups < ActiveRecord::Migration[7.1]
diff --git a/db/migrate/20240811143801_add_parent_to_group.rb b/db/migrate/20240811143801_add_parent_to_group.rb
index 868ea79..fc4a881 100644
--- a/db/migrate/20240811143801_add_parent_to_group.rb
+++ b/db/migrate/20240811143801_add_parent_to_group.rb
@@ -1,3 +1,5 @@
+# Copyright (C) 2024 Manuel Bustillo
+
 # Copyright (C) 2024-2025 LibreWeddingPlanner contributors
 
 class AddParentToGroup < ActiveRecord::Migration[7.1]
diff --git a/db/migrate/20240811154115_add_group_to_guest.rb b/db/migrate/20240811154115_add_group_to_guest.rb
index b7df5aa..ff88298 100644
--- a/db/migrate/20240811154115_add_group_to_guest.rb
+++ b/db/migrate/20240811154115_add_group_to_guest.rb
@@ -1,3 +1,5 @@
+# Copyright (C) 2024 Manuel Bustillo
+
 # Copyright (C) 2024-2025 LibreWeddingPlanner contributors
 
 class AddGroupToGuest < ActiveRecord::Migration[7.1]
diff --git a/db/migrate/20240811170021_add_status_to_guest.rb b/db/migrate/20240811170021_add_status_to_guest.rb
index ec92086..09a2a9e 100644
--- a/db/migrate/20240811170021_add_status_to_guest.rb
+++ b/db/migrate/20240811170021_add_status_to_guest.rb
@@ -1,3 +1,5 @@
+# Copyright (C) 2024 Manuel Bustillo
+
 # Copyright (C) 2024-2025 LibreWeddingPlanner contributors
 
 class AddStatusToGuest < ActiveRecord::Migration[7.1]
diff --git a/db/migrate/20241101181052_drop_taggable_tables.rb b/db/migrate/20241101181052_drop_taggable_tables.rb
index 1ece831..6787951 100644
--- a/db/migrate/20241101181052_drop_taggable_tables.rb
+++ b/db/migrate/20241101181052_drop_taggable_tables.rb
@@ -1,3 +1,5 @@
+# Copyright (C) 2024 Manuel Bustillo
+
 # Copyright (C) 2024-2025 LibreWeddingPlanner contributors
 
 class DropTaggableTables < ActiveRecord::Migration[7.2]
diff --git a/db/migrate/20241103072808_add_name_to_tables_arrangements.rb b/db/migrate/20241103072808_add_name_to_tables_arrangements.rb
index 1893200..3bd57a2 100644
--- a/db/migrate/20241103072808_add_name_to_tables_arrangements.rb
+++ b/db/migrate/20241103072808_add_name_to_tables_arrangements.rb
@@ -1,3 +1,5 @@
+# Copyright (C) 2024 Manuel Bustillo
+
 # Copyright (C) 2024-2025 LibreWeddingPlanner contributors
 
 class AddNameToTablesArrangements < ActiveRecord::Migration[7.2]
diff --git a/db/migrate/20241103075705_solid_queue_install.rb b/db/migrate/20241103075705_solid_queue_install.rb
index fcd7627..ca9e45e 100644
--- a/db/migrate/20241103075705_solid_queue_install.rb
+++ b/db/migrate/20241103075705_solid_queue_install.rb
@@ -1,3 +1,5 @@
+# Copyright (C) 2024 Manuel Bustillo
+
 # Copyright (C) 2024-2025 LibreWeddingPlanner contributors
 
 class SolidQueueInstall < ActiveRecord::Migration[7.2]
diff --git a/db/migrate/20241103093955_remove_email_from_guests.rb b/db/migrate/20241103093955_remove_email_from_guests.rb
index cde2f00..a6f9798 100644
--- a/db/migrate/20241103093955_remove_email_from_guests.rb
+++ b/db/migrate/20241103093955_remove_email_from_guests.rb
@@ -1,3 +1,5 @@
+# Copyright (C) 2024 Manuel Bustillo
+
 # Copyright (C) 2024-2025 LibreWeddingPlanner contributors
 
 class RemoveEmailFromGuests < ActiveRecord::Migration[7.2]
diff --git a/db/migrate/20241103133122_add_color_to_group.rb b/db/migrate/20241103133122_add_color_to_group.rb
index a031638..30218e3 100644
--- a/db/migrate/20241103133122_add_color_to_group.rb
+++ b/db/migrate/20241103133122_add_color_to_group.rb
@@ -1,3 +1,5 @@
+# Copyright (C) 2024 Manuel Bustillo
+
 # Copyright (C) 2024-2025 LibreWeddingPlanner contributors
 
 class AddColorToGroup < ActiveRecord::Migration[7.2]
diff --git a/db/migrate/20241111063741_merge_guest_names.rb b/db/migrate/20241111063741_merge_guest_names.rb
index 3b2690c..90d5e82 100644
--- a/db/migrate/20241111063741_merge_guest_names.rb
+++ b/db/migrate/20241111063741_merge_guest_names.rb
@@ -1,3 +1,5 @@
+# Copyright (C) 2024 Manuel Bustillo
+
 # Copyright (C) 2024-2025 LibreWeddingPlanner contributors
 
 class MergeGuestNames < ActiveRecord::Migration[8.0]
diff --git a/db/migrate/20241130095753_devise_create_users.rb b/db/migrate/20241130095753_devise_create_users.rb
index efdddef..496e3fc 100644
--- a/db/migrate/20241130095753_devise_create_users.rb
+++ b/db/migrate/20241130095753_devise_create_users.rb
@@ -1,3 +1,5 @@
+# Copyright (C) 2024 Manuel Bustillo
+
 # Copyright (C) 2024-2025 LibreWeddingPlanner contributors
 
 # frozen_string_literal: true
diff --git a/db/migrate/20241130182228_create_weddings.rb b/db/migrate/20241130182228_create_weddings.rb
index 857b63e..77ada38 100644
--- a/db/migrate/20241130182228_create_weddings.rb
+++ b/db/migrate/20241130182228_create_weddings.rb
@@ -1,3 +1,5 @@
+# Copyright (C) 2024 Manuel Bustillo
+
 # Copyright (C) 2024-2025 LibreWeddingPlanner contributors
 
 class CreateWeddings < ActiveRecord::Migration[8.0]
diff --git a/db/migrate/20241130185731_add_wedding_id_to_models.rb b/db/migrate/20241130185731_add_wedding_id_to_models.rb
index 85fbabf..c9b231c 100644
--- a/db/migrate/20241130185731_add_wedding_id_to_models.rb
+++ b/db/migrate/20241130185731_add_wedding_id_to_models.rb
@@ -1,3 +1,5 @@
+# Copyright (C) 2024 Manuel Bustillo
+
 # Copyright (C) 2024-2025 LibreWeddingPlanner contributors
 
 class AddWeddingIdToModels < ActiveRecord::Migration[8.0]
diff --git a/db/migrate/20241207112305_remove_wedding_date.rb b/db/migrate/20241207112305_remove_wedding_date.rb
index 5b2e987..ca28b71 100644
--- a/db/migrate/20241207112305_remove_wedding_date.rb
+++ b/db/migrate/20241207112305_remove_wedding_date.rb
@@ -1,3 +1,5 @@
+# Copyright (C) 2024 Manuel Bustillo
+
 # Copyright (C) 2024-2025 LibreWeddingPlanner contributors
 
 class RemoveWeddingDate < ActiveRecord::Migration[8.0]
diff --git a/db/migrate/20241208102932_allow_ungrouped_guests.rb b/db/migrate/20241208102932_allow_ungrouped_guests.rb
index 572a871..f567676 100644
--- a/db/migrate/20241208102932_allow_ungrouped_guests.rb
+++ b/db/migrate/20241208102932_allow_ungrouped_guests.rb
@@ -1,3 +1,5 @@
+# Copyright (C) 2024 Manuel Bustillo
+
 # Copyright (C) 2024-2025 LibreWeddingPlanner contributors
 
 class AllowUngroupedGuests < ActiveRecord::Migration[8.0]
diff --git a/db/migrate/20241216231415_create_group_affinities.rb b/db/migrate/20241216231415_create_group_affinities.rb
index 22f86c5..113d026 100644
--- a/db/migrate/20241216231415_create_group_affinities.rb
+++ b/db/migrate/20241216231415_create_group_affinities.rb
@@ -1,3 +1,5 @@
+# Copyright (C) 2024 Manuel Bustillo
+
 # Copyright (C) 2024-2025 LibreWeddingPlanner contributors
 
 class CreateGroupAffinities < ActiveRecord::Migration[8.0]
diff --git a/db/queue_schema.rb b/db/queue_schema.rb
index 41a41b0..149f41f 100644
--- a/db/queue_schema.rb
+++ b/db/queue_schema.rb
@@ -1,3 +1,5 @@
+# Copyright (C) 2024 Manuel Bustillo
+
 # Copyright (C) 2024-2025 LibreWeddingPlanner contributors
 
 ActiveRecord::Schema[7.1].define(version: 1) do
diff --git a/db/schema.rb b/db/schema.rb
index 11aa68c..cfc1383 100644
--- a/db/schema.rb
+++ b/db/schema.rb
@@ -1,3 +1,5 @@
+# Copyright (C) 2024 Manuel Bustillo
+
 # Copyright (C) 2024-2025 LibreWeddingPlanner contributors
 
 # This file is auto-generated from the current state of the database. Instead
diff --git a/db/seeds.rb b/db/seeds.rb
index fcf5ec3..e61f33b 100644
--- a/db/seeds.rb
+++ b/db/seeds.rb
@@ -1,3 +1,5 @@
+# Copyright (C) 2024 Manuel Bustillo
+
 # Copyright (C) 2024-2025 LibreWeddingPlanner contributors
 
 NUMBER_OF_GUESTS = 50
diff --git a/spec/extensions/tree_spec.rb b/spec/extensions/tree_spec.rb
index 4b45e26..937a0fe 100644
--- a/spec/extensions/tree_spec.rb
+++ b/spec/extensions/tree_spec.rb
@@ -1,3 +1,5 @@
+# Copyright (C) 2024 Manuel Bustillo
+
 # Copyright (C) 2024-2025 LibreWeddingPlanner contributors
 
 # frozen_string_literal: true
diff --git a/spec/factories/expense.rb b/spec/factories/expense.rb
index c722f78..ceaf501 100644
--- a/spec/factories/expense.rb
+++ b/spec/factories/expense.rb
@@ -1,3 +1,5 @@
+# Copyright (C) 2024 Manuel Bustillo
+
 # Copyright (C) 2024-2025 LibreWeddingPlanner contributors
 
 # Copyright (C) 2024-2025 LibreWeddingPlanner contributors
diff --git a/spec/factories/group_affinities.rb b/spec/factories/group_affinities.rb
index ca83cb9..c33de53 100644
--- a/spec/factories/group_affinities.rb
+++ b/spec/factories/group_affinities.rb
@@ -1,3 +1,5 @@
+# Copyright (C) 2024 Manuel Bustillo
+
 # Copyright (C) 2024-2025 LibreWeddingPlanner contributors
 
 # Copyright (C) 2024-2025 LibreWeddingPlanner contributors
diff --git a/spec/factories/groups.rb b/spec/factories/groups.rb
index de8d929..f19ba72 100644
--- a/spec/factories/groups.rb
+++ b/spec/factories/groups.rb
@@ -1,3 +1,5 @@
+# Copyright (C) 2024 Manuel Bustillo
+
 # Copyright (C) 2024-2025 LibreWeddingPlanner contributors
 
 # Copyright (C) 2024-2025 LibreWeddingPlanner contributors
diff --git a/spec/factories/guest.rb b/spec/factories/guest.rb
index f80c7ac..a1f284a 100644
--- a/spec/factories/guest.rb
+++ b/spec/factories/guest.rb
@@ -1,3 +1,5 @@
+# Copyright (C) 2024 Manuel Bustillo
+
 # Copyright (C) 2024-2025 LibreWeddingPlanner contributors
 
 # Copyright (C) 2024-2025 LibreWeddingPlanner contributors
diff --git a/spec/factories/table_arrangement.rb b/spec/factories/table_arrangement.rb
index 3f447ed..86ddddf 100644
--- a/spec/factories/table_arrangement.rb
+++ b/spec/factories/table_arrangement.rb
@@ -1,3 +1,5 @@
+# Copyright (C) 2024 Manuel Bustillo
+
 # Copyright (C) 2024-2025 LibreWeddingPlanner contributors
 
 # Copyright (C) 2024-2025 LibreWeddingPlanner contributors
diff --git a/spec/factories/users.rb b/spec/factories/users.rb
index 8e7f582..cc49d11 100644
--- a/spec/factories/users.rb
+++ b/spec/factories/users.rb
@@ -1,3 +1,5 @@
+# Copyright (C) 2024 Manuel Bustillo
+
 # Copyright (C) 2024-2025 LibreWeddingPlanner contributors
 
 # Copyright (C) 2024-2025 LibreWeddingPlanner contributors
diff --git a/spec/factories/weddings.rb b/spec/factories/weddings.rb
index a1959c6..de994c8 100644
--- a/spec/factories/weddings.rb
+++ b/spec/factories/weddings.rb
@@ -1,3 +1,5 @@
+# Copyright (C) 2024 Manuel Bustillo
+
 # Copyright (C) 2024-2025 LibreWeddingPlanner contributors
 
 # Copyright (C) 2024-2025 LibreWeddingPlanner contributors
diff --git a/spec/models/expense_spec.rb b/spec/models/expense_spec.rb
index c48bc93..9a8fc47 100644
--- a/spec/models/expense_spec.rb
+++ b/spec/models/expense_spec.rb
@@ -1,3 +1,5 @@
+# Copyright (C) 2024 Manuel Bustillo
+
 # Copyright (C) 2024-2025 LibreWeddingPlanner contributors
 
 # Copyright (C) 2024-2025 LibreWeddingPlanner contributors
diff --git a/spec/models/group_affinity_spec.rb b/spec/models/group_affinity_spec.rb
index 8afd2c6..5469d27 100644
--- a/spec/models/group_affinity_spec.rb
+++ b/spec/models/group_affinity_spec.rb
@@ -1,3 +1,5 @@
+# Copyright (C) 2024 Manuel Bustillo
+
 # Copyright (C) 2024-2025 LibreWeddingPlanner contributors
 
 # frozen_string_literal: true
diff --git a/spec/models/group_spec.rb b/spec/models/group_spec.rb
index 73185ca..d7ec456 100644
--- a/spec/models/group_spec.rb
+++ b/spec/models/group_spec.rb
@@ -1,3 +1,5 @@
+# Copyright (C) 2024 Manuel Bustillo
+
 # Copyright (C) 2024-2025 LibreWeddingPlanner contributors
 
 # Copyright (C) 2024-2025 LibreWeddingPlanner contributors
diff --git a/spec/models/guest_spec.rb b/spec/models/guest_spec.rb
index e1f7ad6..ed526e8 100644
--- a/spec/models/guest_spec.rb
+++ b/spec/models/guest_spec.rb
@@ -1,3 +1,5 @@
+# Copyright (C) 2024 Manuel Bustillo
+
 # Copyright (C) 2024-2025 LibreWeddingPlanner contributors
 
 # frozen_string_literal: true
diff --git a/spec/models/seat_spec.rb b/spec/models/seat_spec.rb
index 5a7ddb4..da5c17f 100644
--- a/spec/models/seat_spec.rb
+++ b/spec/models/seat_spec.rb
@@ -1,3 +1,5 @@
+# Copyright (C) 2024 Manuel Bustillo
+
 # Copyright (C) 2024-2025 LibreWeddingPlanner contributors
 
 # Copyright (C) 2024-2025 LibreWeddingPlanner contributors
diff --git a/spec/models/tables_arrangement_spec.rb b/spec/models/tables_arrangement_spec.rb
index 6bdbb55..b216b18 100644
--- a/spec/models/tables_arrangement_spec.rb
+++ b/spec/models/tables_arrangement_spec.rb
@@ -1,3 +1,5 @@
+# Copyright (C) 2024 Manuel Bustillo
+
 # Copyright (C) 2024-2025 LibreWeddingPlanner contributors
 
 # Copyright (C) 2024-2025 LibreWeddingPlanner contributors
diff --git a/spec/models/user_spec.rb b/spec/models/user_spec.rb
index 274c031..9f69608 100644
--- a/spec/models/user_spec.rb
+++ b/spec/models/user_spec.rb
@@ -1,3 +1,5 @@
+# Copyright (C) 2024 Manuel Bustillo
+
 # Copyright (C) 2024-2025 LibreWeddingPlanner contributors
 
 # Copyright (C) 2024-2025 LibreWeddingPlanner contributors
diff --git a/spec/models/wedding_spec.rb b/spec/models/wedding_spec.rb
index acc5c4c..735255d 100644
--- a/spec/models/wedding_spec.rb
+++ b/spec/models/wedding_spec.rb
@@ -1,3 +1,5 @@
+# Copyright (C) 2024 Manuel Bustillo
+
 # Copyright (C) 2024-2025 LibreWeddingPlanner contributors
 
 # Copyright (C) 2024-2025 LibreWeddingPlanner contributors
diff --git a/spec/queries/expenses/total_query_spec.rb b/spec/queries/expenses/total_query_spec.rb
index f1c2c4f..e3f16c4 100644
--- a/spec/queries/expenses/total_query_spec.rb
+++ b/spec/queries/expenses/total_query_spec.rb
@@ -1,3 +1,5 @@
+# Copyright (C) 2024 Manuel Bustillo
+
 # Copyright (C) 2024-2025 LibreWeddingPlanner contributors
 
 # frozen_string_literal: true
diff --git a/spec/queries/groups/summary_query_spec.rb b/spec/queries/groups/summary_query_spec.rb
index 6300724..cb3b7fe 100644
--- a/spec/queries/groups/summary_query_spec.rb
+++ b/spec/queries/groups/summary_query_spec.rb
@@ -1,3 +1,5 @@
+# Copyright (C) 2024 Manuel Bustillo
+
 # Copyright (C) 2024-2025 LibreWeddingPlanner contributors
 
 # frozen_string_literal: true
diff --git a/spec/rails_helper.rb b/spec/rails_helper.rb
index faf5740..653bbf9 100644
--- a/spec/rails_helper.rb
+++ b/spec/rails_helper.rb
@@ -1,3 +1,5 @@
+# Copyright (C) 2024 Manuel Bustillo
+
 # Copyright (C) 2024-2025 LibreWeddingPlanner contributors
 
 # frozen_string_literal: true
diff --git a/spec/requests/affinities_spec.rb b/spec/requests/affinities_spec.rb
index 95e4b13..2adad02 100644
--- a/spec/requests/affinities_spec.rb
+++ b/spec/requests/affinities_spec.rb
@@ -1,3 +1,5 @@
+# Copyright (C) 2024 Manuel Bustillo
+
 # Copyright (C) 2024-2025 LibreWeddingPlanner contributors
 
 # frozen_string_literal: true
diff --git a/spec/requests/captcha_spec.rb b/spec/requests/captcha_spec.rb
index e3f49cf..e1f2fea 100644
--- a/spec/requests/captcha_spec.rb
+++ b/spec/requests/captcha_spec.rb
@@ -1,3 +1,5 @@
+# Copyright (C) 2024 Manuel Bustillo
+
 # Copyright (C) 2024-2025 LibreWeddingPlanner contributors
 
 # frozen_string_literal: true
diff --git a/spec/requests/expenses_spec.rb b/spec/requests/expenses_spec.rb
index 1f064d6..e6defe4 100644
--- a/spec/requests/expenses_spec.rb
+++ b/spec/requests/expenses_spec.rb
@@ -1,3 +1,5 @@
+# Copyright (C) 2024 Manuel Bustillo
+
 # Copyright (C) 2024-2025 LibreWeddingPlanner contributors
 
 # frozen_string_literal: true
diff --git a/spec/requests/groups_spec.rb b/spec/requests/groups_spec.rb
index 2e9d5ac..49d121b 100644
--- a/spec/requests/groups_spec.rb
+++ b/spec/requests/groups_spec.rb
@@ -1,3 +1,5 @@
+# Copyright (C) 2024 Manuel Bustillo
+
 # Copyright (C) 2024-2025 LibreWeddingPlanner contributors
 
 # frozen_string_literal: true
diff --git a/spec/requests/guests_spec.rb b/spec/requests/guests_spec.rb
index 0ecd72f..40a6686 100644
--- a/spec/requests/guests_spec.rb
+++ b/spec/requests/guests_spec.rb
@@ -1,3 +1,5 @@
+# Copyright (C) 2024 Manuel Bustillo
+
 # Copyright (C) 2024-2025 LibreWeddingPlanner contributors
 
 # frozen_string_literal: true
diff --git a/spec/requests/schemas.rb b/spec/requests/schemas.rb
index 549834e..3fd49f2 100644
--- a/spec/requests/schemas.rb
+++ b/spec/requests/schemas.rb
@@ -1,3 +1,5 @@
+# Copyright (C) 2024 Manuel Bustillo
+
 # Copyright (C) 2024-2025 LibreWeddingPlanner contributors
 
 # frozen_string_literal: true
diff --git a/spec/requests/summary_spec.rb b/spec/requests/summary_spec.rb
index d6a1f85..3dc6ac0 100644
--- a/spec/requests/summary_spec.rb
+++ b/spec/requests/summary_spec.rb
@@ -1,3 +1,5 @@
+# Copyright (C) 2024 Manuel Bustillo
+
 # Copyright (C) 2024-2025 LibreWeddingPlanner contributors
 
 # frozen_string_literal: true
diff --git a/spec/requests/tables_arrangements_spec.rb b/spec/requests/tables_arrangements_spec.rb
index 4e87cb2..cf48cac 100644
--- a/spec/requests/tables_arrangements_spec.rb
+++ b/spec/requests/tables_arrangements_spec.rb
@@ -1,3 +1,5 @@
+# Copyright (C) 2024 Manuel Bustillo
+
 # Copyright (C) 2024-2025 LibreWeddingPlanner contributors
 
 # frozen_string_literal: true
diff --git a/spec/requests/tokens_spec.rb b/spec/requests/tokens_spec.rb
index a6aac2e..b5b9cf7 100644
--- a/spec/requests/tokens_spec.rb
+++ b/spec/requests/tokens_spec.rb
@@ -1,3 +1,5 @@
+# Copyright (C) 2024 Manuel Bustillo
+
 # Copyright (C) 2024-2025 LibreWeddingPlanner contributors
 
 # frozen_string_literal: true
diff --git a/spec/requests/users/confirmations_spec.rb b/spec/requests/users/confirmations_spec.rb
index 492f6f3..d76d53a 100644
--- a/spec/requests/users/confirmations_spec.rb
+++ b/spec/requests/users/confirmations_spec.rb
@@ -1,3 +1,5 @@
+# Copyright (C) 2024 Manuel Bustillo
+
 # Copyright (C) 2024-2025 LibreWeddingPlanner contributors
 
 # frozen_string_literal: true
diff --git a/spec/requests/users/registrations_spec.rb b/spec/requests/users/registrations_spec.rb
index e55d4c8..064d28e 100644
--- a/spec/requests/users/registrations_spec.rb
+++ b/spec/requests/users/registrations_spec.rb
@@ -1,3 +1,5 @@
+# Copyright (C) 2024 Manuel Bustillo
+
 # Copyright (C) 2024-2025 LibreWeddingPlanner contributors
 
 # frozen_string_literal: true
diff --git a/spec/requests/users/sessions_spec.rb b/spec/requests/users/sessions_spec.rb
index 60b49e1..61c2662 100644
--- a/spec/requests/users/sessions_spec.rb
+++ b/spec/requests/users/sessions_spec.rb
@@ -1,3 +1,5 @@
+# Copyright (C) 2024 Manuel Bustillo
+
 # Copyright (C) 2024-2025 LibreWeddingPlanner contributors
 
 # frozen_string_literal: true
diff --git a/spec/services/tables/discomfort_calculator_spec.rb b/spec/services/tables/discomfort_calculator_spec.rb
index 5597dd1..81633d7 100644
--- a/spec/services/tables/discomfort_calculator_spec.rb
+++ b/spec/services/tables/discomfort_calculator_spec.rb
@@ -1,3 +1,5 @@
+# Copyright (C) 2024 Manuel Bustillo
+
 # Copyright (C) 2024-2025 LibreWeddingPlanner contributors
 
 # frozen_string_literal: true
diff --git a/spec/services/tables/distribution_spec.rb b/spec/services/tables/distribution_spec.rb
index e598a52..a427f40 100644
--- a/spec/services/tables/distribution_spec.rb
+++ b/spec/services/tables/distribution_spec.rb
@@ -1,3 +1,5 @@
+# Copyright (C) 2024 Manuel Bustillo
+
 # Copyright (C) 2024-2025 LibreWeddingPlanner contributors
 
 # frozen_string_literal: true
diff --git a/spec/services/tables/shift_spec.rb b/spec/services/tables/shift_spec.rb
index 39e07f8..67a4d5d 100644
--- a/spec/services/tables/shift_spec.rb
+++ b/spec/services/tables/shift_spec.rb
@@ -1,3 +1,5 @@
+# Copyright (C) 2024 Manuel Bustillo
+
 # Copyright (C) 2024-2025 LibreWeddingPlanner contributors
 
 # frozen_string_literal: true
diff --git a/spec/services/tables/swap_spec.rb b/spec/services/tables/swap_spec.rb
index d8db4a7..ae9e974 100644
--- a/spec/services/tables/swap_spec.rb
+++ b/spec/services/tables/swap_spec.rb
@@ -1,3 +1,5 @@
+# Copyright (C) 2024 Manuel Bustillo
+
 # Copyright (C) 2024-2025 LibreWeddingPlanner contributors
 
 # frozen_string_literal: true
diff --git a/spec/services/vns/engine_spec.rb b/spec/services/vns/engine_spec.rb
index 73d7b82..c8d489d 100644
--- a/spec/services/vns/engine_spec.rb
+++ b/spec/services/vns/engine_spec.rb
@@ -1,3 +1,5 @@
+# Copyright (C) 2024 Manuel Bustillo
+
 # Copyright (C) 2024-2025 LibreWeddingPlanner contributors
 
 # frozen_string_literal: true
diff --git a/spec/spec_helper.rb b/spec/spec_helper.rb
index d405628..f5a5a59 100644
--- a/spec/spec_helper.rb
+++ b/spec/spec_helper.rb
@@ -1,3 +1,5 @@
+# Copyright (C) 2024 Manuel Bustillo
+
 # Copyright (C) 2024-2025 LibreWeddingPlanner contributors
 
 # frozen_string_literal: true
diff --git a/spec/swagger_helper.rb b/spec/swagger_helper.rb
index 5ba4cce..bbf6c7f 100644
--- a/spec/swagger_helper.rb
+++ b/spec/swagger_helper.rb
@@ -1,3 +1,5 @@
+# Copyright (C) 2024 Manuel Bustillo
+
 # Copyright (C) 2024-2025 LibreWeddingPlanner contributors
 
 # frozen_string_literal: true
diff --git a/spec/swagger_response_helper.rb b/spec/swagger_response_helper.rb
index 09df9a1..c13d8a8 100644
--- a/spec/swagger_response_helper.rb
+++ b/spec/swagger_response_helper.rb
@@ -1,3 +1,5 @@
+# Copyright (C) 2024 Manuel Bustillo
+
 # Copyright (C) 2024-2025 LibreWeddingPlanner contributors
 
 # frozen_string_literal: true