With this module you can setup Nostr internet identifiers on your server. After you installed the module within your Drupal site, you can open /admin/config/system/nostr-id-nip05 to configure the content of the nostr.json file.

In case you missed it, when the founder of Drupal Dries Buytaert discovered Nostr it was love on first sight (https://dri.es/nostr-love-at-first-sight).