AFAIK, not yet. It was a goal of Mimir, but LMDB (used by arroy on particular and Meilisearch in general) uses filesystem and os features (mmap, file locking) that are incompatible with wasm.

If you're interested in bringing WASM support, I think the most promising avenue was to support redb as a heed backend. Heed is the high level binding library we're using to talk to LMDB. If you're interested in doing this, you can get in touch with the maintainer of mimir.

As a Meilisearch team member, I'd love to participate as well, but I'm afraid I won't have the bandwidth