Is there a plan to support providers implemented in a language other tan golang (e.g. typescript)?

This already is possible - as there is just a generic gRPC interface that providers need to speak. But we do not have any pre-built SDKs to make this "easy" in other languages today. This is something that could easily be built by anyone in the ecosystem. If there is interest - we'd be happy to help with any necessary additional documentation of the

gRPC

and process-launch contracts.