Boundary dev mode was a convenient way to explore and test. The next step is to deploy a non-dev highly available (HA) environment.
The following diagram shows a general architecture on Amazon Web Services (AWS).
You should run a minimum of 3 controllers and 3 workers for fault tolerance.
For the complete guide, refer to the Boundary High Availability Install documentation. Find Terraform files at Boundary AWS Reference Architecture GitHub repository to deploy a cluster as shown in the diagram.