Multisite: Preferred redirection strategy from the domain root?

[helloDanuk]

What is the best strategy to redirect example.com to example.com/de in this setup below? Is this something I should do somehow in Statamic or is it a server level redirect? I would prefer to run the main language under the /de folder, as I do with the second language. Thanks for a little help in advance.

main language:

• example.com/de
• example.com/de/page-1

second language:

• example.com/fr
• example.com/fr/page-1

my sites.yaml looks like this:

de:
  name: '{{ config:app:name }} DE'
  url: /de
  locale: de_CH
  lang: de_CH
fr:
  name: '{{ config:app:name }} FR'
  url: /fr
  locale: fr_CH
  lang: fr_CH

[aerni]

You can add the following code to your routes to redirect the user to the correct route based on the browser language:

Route::redirect('/', '/'.request()->getPreferredLanguage(['de', 'fr']));