Redash object configuration through configuration files?

Hi there,
We installed Redash using the Helm chart provided here: GitHub - getredash/contrib-helm-chart: Community maintained Redash Helm Chart on a GKE cluster.
Our PostgreSQL and Redis instances are running on GCP managed services.

We noticed there is no way to add objects (like datasources, groups, queries, …) through configuration files. It seems it should be done through the UI (or the API).
Is there an existing way to configure our Redash instance through configuration files or some way around Terraform/Helm ?

Thanks in advance