hey there! I have an odd (maybe) use case and wondering how hard it would be to use greptime with it: I have a requirement to only use object storage. can I use object storage with conditional writes for the metadata server? can I embed Greptime in an existing Rust codebase? possibly having multiple instances using the same object-storage-backed greptime?

1. The full feature of GreptimeDB needs: ◦ Object storage as the backend storage. ◦ Local disk(or cloud block storage) as cache storage, and it's necessary for performance. ◦ RDS(or etcd) as the metadata storage. 2. For now, the greptimedb can not be embedded; 3. You can deploy multiple greptimedb instances (cluster or standalone) in the same object storage with different bucket directories. Also, for performance isolation, it's better to deploy a dedicated meta storage for each greptimedb instance.