I didn't post this, but I coincidentally tried testing numerous open source vector databases during the last week, including building them from source, testing

I didn't post this, but I coincidentally tried testing numerous open source vector databases during the last week, including building them from source, testing them for my use case, etc. For my needs, and thinking longterm, I think Qdrant is the best option. Their docs are clear and it was easy to build from source using Rust (it takes about 30 minutes, but it just works) and the binaries are relatively small and portable. It was also easy to build the latest dev version, which has built in authentication (due to a bounty claimed two weeks ago). There's a new official Javascript client (for use from nodejs), which builds on "openapi" and seems to work well, if you're using nodejs as a client instead of Python. My overall impression of Qdrant is that it's clean and uncluttered compared to other options, development is very open, and the devs are technically very capable. The docs are clear and to the point, without a bunch of extra nonsense getting in the way. It's also easy to try out for free via their hosted cloud.