DataStax Astra is built on Apache Cassandra and should therefore also work without surprises even though there is no continuous integration tests for it in this project. See DataStax Astra configuration.
Lightbend support only covers usage with Apache Cassandra, DSE and DataStax Astra.
Several other alternatives are listed below. Be aware of that this project is not continuously tested against those and currently not covered by Lightbend support.