https://docs.djangoproject.com/en/5.0/ref/settings/#language-code
While the Django framework provides translations for the admin interface, the OpenWISP modules that offer admin dashboard functionality do not include translations.
Consequently, you may see a partially translated interface.
Currently, we only maintain translations for OpenWISP RADIUS and WiFi Login Pages, specifically for features designed for end-users, such as subscribing to a WiFi hotspot service.
Due to our limited resources, we are unable to maintain translations for the admin interface of OpenWISP at this time.
The admin interface is primarily intended for tech-savvy users who are generally proficient in English.
I hope this helps.
Best regards
Federico Capoano