So one could retain the contents of every website every visited and then run local, in-browser searches against that content? Is that the idea? This library would serve as the vector DB?
Unlike it's keyword search counterpart it expensive. Order of magnitude expensive. All because you need to maintain a vector search index and keep it available server side.
Enter Tinkerbird. This little library takes the heavy lifting and pushes it client side. Stream your embeddings, front it via CDN or cache it on client. Now you get benefits of vector index without the costs of maintaining one.