As far as I know, no one has fully implemented full-text search directly over Anna's Archive. Technically it’s feasible with tools like Meilisearch, Elasticsearch, or Lucene, but the main challenges are:
Converting all documents (PDFs, EPUBs, etc.) to clean plaintext.
Indexing at scale efficiently.
Managing potential legal issues.
Z-Library does something similar, but it’s smaller in scope and doesn't integrate AA’s full catalog.To manage the legal issues, you just have to put AI on the search. "AI search".
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I’ve done something like this before. Meilisearch will not be viable, because it indexes very slow and it takes up a lot of space.
In my experience only Tantivy can index this much data. Check out Lnx.