```ruby
# Set up autoload of patches
def apply_patch(&block)
  ActionDispatch::Callbacks.to_prepare(&block)
end

apply_patch do
  require_dependency 'redmine_diff_email/patches/changeset_patch'
  require_dependency 'redmine_diff_email/patches/mailer_patch'
  require_dependency 'redmine_diff_email/patches/repository_patch'

  require_dependency 'redmine_diff_email/patches/git_adapter_patch'
  require_dependency 'redmine_diff_email/patches/mercurial_adapter_patch'
  require_dependency 'redmine_diff_email/patches/subversion_adapter_patch'

  require_dependency 'redmine_diff_email/hooks/repository_form_hook'
end
```

Use Rails.configuration.to_prepare to load patches
user
```ruby
# Set up autoload of patches
Rails.configuration.to_prepare do
  require_dependency 'redmine_diff_email/patches/changeset_patch'
  require_dependency 'redmine_diff_email/patches/mailer_patch'
  require_dependency 'redmine_diff_email/patches/repository_patch'

  require_dependency 'redmine_diff_email/patches/git_adapter_patch'
  require_dependency 'redmine_diff_email/patches/mercurial_adapter_patch'
  require_dependency 'redmine_diff_email/patches/subversion_adapter_patch'

  require_dependency 'redmine_diff_email/hooks/repository_form_hook'
end
```
assistant