http://uxngojcovdcyrmwkmkltyy2q7enzzvgv7vlqac64f2vl6hcrrqtlskqd.onion/faq
All searches will be stored hashed with a secret in a cache. When you perform a search, the cache
will be checked first, before determining whether a direct call to Google or Brave Search should
be made. Each time the Leta application is restarted (due to an upgrade, or new version) server
side, a new secret hash is generated, meaning that all previous search queries are no longer
visible to Leta.