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From MVP to Scale: Architecture Decisions That Save or Sink Your Startup

Barking Dogs Engineering Team·

The decisions that matter most aren't the longest to execute — they're the hardest to change later.

Modular Monolith vs Microservices

Start with a modular monolith. It makes future extraction easy without the premature complexity of microservices.

The Database Schema

Design your data model for the next 18 months. PostgreSQL is the gold standard.

Authentication Architecture

Don't reinvent the wheel. Use Auth0, AWS Cognito, or Supabase Auth, and design for multi-tenancy from the start.

CI/CD and DevOps

Infrastructure as code is mandatory. Deploying should be a boring, automatic process.

  • Automated tests on every commit.
  • Automatic deploys to staging.
  • Infrastructure defined with Terraform or CDK.

Total Observability

If you can't measure it, you can't fix it. Logs and metrics belong in your v1.

What You Can Postpone

You can postpone the final CDN or the data warehouse — never the domain model or the deployment pipeline.

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