Show HN: Omni – Open-source workplace search and chat, built on Postgres

Tangential, when you mentioned "Full-text (BM25) and semantic (pgvector) search", what are the significant benefits of the latter? I used to think of BM25 indexes as vectors of documents, which support search, "more like this" etc.

When a product headlines what it’s built with, it’s does not bode well for customer success.