You are building a microservices app using Cloud Run, Bigtable, and Pub/Sub and need fast, low-cost testing and debugging to create an MVP. What should you do?

Using local emulators for Bigtable and Pub/Sub allows for fast, low-cost testing and debugging without incurring cloud resource charges. This approach is ideal for an MVP because it provides immediate feedback during development, minimizing the iteration cycle. Once the core functionality is validated locally, the code can be deployed to the Google Cloud project for integration testing. Using Cloud Shell Editor and Cloud Shell requires deploying to actual cloud resources, which incurs costs and can be slower for iterative debugging. Creating a Cloud Build pipeline is suitable for CI/CD but is overkill for initial MVP development and debugging. Cloud Code is a powerful IDE extension, but for the specific need of "fast, low-cost testing and debugging" of cloud resource interactions for an MVP, local emulators are more direct and efficient.