diff --git a/config/environments/custom/development.rb b/config/environments/custom/development.rb
new file mode 100644
index 000000000..ef56c3d4a
--- /dev/null
+++ b/config/environments/custom/development.rb
@@ -0,0 +1,4 @@
+Rails.application.configure do
+  # Overwrite settings for the development environment or add your own
+  # custom settings for this environment.
+end
diff --git a/config/environments/custom/preproduction.rb b/config/environments/custom/preproduction.rb
new file mode 100644
index 000000000..0ba7acfba
--- /dev/null
+++ b/config/environments/custom/preproduction.rb
@@ -0,0 +1,4 @@
+Rails.application.configure do
+  # Overwrite settings for the preproduction environment or add your own
+  # custom settings for this environment.
+end
diff --git a/config/environments/custom/production.rb b/config/environments/custom/production.rb
new file mode 100644
index 000000000..ffdddca82
--- /dev/null
+++ b/config/environments/custom/production.rb
@@ -0,0 +1,4 @@
+Rails.application.configure do
+  # Overwrite settings for the production environment or add your own
+  # custom settings for this environment.
+end
diff --git a/config/environments/custom/staging.rb b/config/environments/custom/staging.rb
new file mode 100644
index 000000000..6f9e80d77
--- /dev/null
+++ b/config/environments/custom/staging.rb
@@ -0,0 +1,7 @@
+Rails.application.configure do
+  # Overwrite settings for the staging environment or add your own
+  # custom settings for this environment. Note these changes will
+  # also affect the preproduction environment, so edit the
+  # `config/environments/custom/preproduction.rb` file if you don't
+  # want these changes to be applied there as well.
+end
diff --git a/config/environments/custom/test.rb b/config/environments/custom/test.rb
new file mode 100644
index 000000000..6fa5e8636
--- /dev/null
+++ b/config/environments/custom/test.rb
@@ -0,0 +1,4 @@
+Rails.application.configure do
+  # Overwrite settings for the test environment or add your own
+  # custom settings for this environment.
+end
diff --git a/config/environments/development.rb b/config/environments/development.rb
index 72d7ec69b..3a2780781 100644
--- a/config/environments/development.rb
+++ b/config/environments/development.rb
@@ -71,3 +71,5 @@ Rails.application.configure do
   # routes, locales, etc. This feature depends on the listen gem.
   # config.file_watcher = ActiveSupport::EventedFileUpdateChecker
 end
+
+require Rails.root.join("config", "environments", "custom", "development")
diff --git a/config/environments/preproduction.rb b/config/environments/preproduction.rb
index dc25ea047..0458782a9 100644
--- a/config/environments/preproduction.rb
+++ b/config/environments/preproduction.rb
@@ -1 +1,2 @@
 require Rails.root.join("config", "environments", "staging")
+require Rails.root.join("config", "environments", "custom", "preproduction")
diff --git a/config/environments/production.rb b/config/environments/production.rb
index 9c8f2e683..5c61e471a 100644
--- a/config/environments/production.rb
+++ b/config/environments/production.rb
@@ -122,3 +122,5 @@ Rails.application.configure do
   # config.active_record.database_resolver = ActiveRecord::Middleware::DatabaseSelector::Resolver
   # config.active_record.database_resolver_context = ActiveRecord::Middleware::DatabaseSelector::Resolver::Session
 end
+
+require Rails.root.join("config", "environments", "custom", "production")
diff --git a/config/environments/staging.rb b/config/environments/staging.rb
index f05d0a6ee..7b3c2ae66 100644
--- a/config/environments/staging.rb
+++ b/config/environments/staging.rb
@@ -121,3 +121,5 @@ Rails.application.configure do
   # config.active_record.database_resolver = ActiveRecord::Middleware::DatabaseSelector::Resolver
   # config.active_record.database_resolver_context = ActiveRecord::Middleware::DatabaseSelector::Resolver::Session
 end
+
+require Rails.root.join("config", "environments", "custom", "staging")
diff --git a/config/environments/test.rb b/config/environments/test.rb
index 463b25f08..fb5deebb8 100644
--- a/config/environments/test.rb
+++ b/config/environments/test.rb
@@ -61,3 +61,5 @@ Rails.application.configure do
     end
   end
 end
+
+require Rails.root.join("config", "environments", "custom", "test")