From the README, it works only on SSD.

All those projects serve different purposes, and several are not actively maintained.

- Meilisearch: It provides a search-as-you-type experience and comes with many features; I don't know it very well, but I think it targets first e-commerce/application search.

- Quickwit: it's a distributed search engine for append-only data and works well on S3, a good fit for observability/security/financial/... data.

- Sonic: it looks like it targets search-as-you-type use cases and does not provide many features (which can be a very good feature in itself as it remains very light).

- Tantivy: It's a library; you need to build your server on top of it if you want an HTTP API. toshi, lnx did. It's used by a lot of search projects like tabbyML, Milvus, bloop, paradedb, airmail...