> Hm, I am interested, but I would love to use it as a rust lib and just have rust types instead of some json config...

Yes that's how you use tantivy normally, not sure which json config you mean.

tantivy-cli is more like a showcase, https://github.com/quickwit-oss/tantivy is the actual project.

Yes, and there is https://tantivy-search.github.io/examples/basic_search.html

But instead of this, I would prefer some way to just hand it JSON and for it to just index all the fields...

for comparison, this is my meilisearch SDK code:

    fun createCustomers() {
        val client = Client(Config("http://localhost:7700", "password"))
        val index = client.index("customers")
        val customers = transaction {
            val customers = Customer.all()
            val json = customers.map { CustomerJson.from(it) }
            Json.encodeToString(ListSerializer(CustomerJson.serializer()), json)
        }
        index.addDocuments(customers, "id")
    }

You can just put everything in a JSON field in tantivy and set it to INDEXED and FAST

Hm, I need to read up on the trade offs of going this route.

Thanks!