yeah @metahash it depends whether you're using an in-memory index (e.g. GPTSimpleVectorIndex, GPTListIndex) or an index backed by a backend db (e.g. GPTPineconeIndex).
For the former, you can serialize the index into a json file to disk and load it again (so you don't have to rebuild).
For the latter, the index storage is already backed by a db like Pinecone / Weaviate, so the next time you build the index you could feed in blank indices like the following:
https://discord.com/channels/1059199217496772688/1059201661417037995/1067531191680503890I have a TODO to add better serialization capabilities this week (e.g. serializing to mongodb etc.)