CustomizationAdvancedAdvancedDeeper topics for uncommon setups.Most sites won't need these. Read the ones that match your use case. i18n & languagesSupported languages and how detection works.Doctor visibilityWhy some doctors don't appear, and how to fix it.TimezonesHow the widget handles slot times across timezones.Analytics recipesSend widget events to GA4, Google Tag Manager, and Mixpanel.i18n & languagesSupported languages and how the widget picks one.