Can I ask what VBs the project uses? Are they fully local VBs?

[OzzyXu]

I saw two VB-related libraries: faiss and elastic. Are they the VBs the project uses? Does the project support other VBs? Thank you.

[dartpain]

You can easily integrate anything elso to store data in and to search on top of it. Just add a class in applicaiton/vectorstore folder

Yes currently its an option between those two.