1. The High Tax of Premature Microservices
A well-structured modular monolith written with clean domain boundaries can handle tens of thousands of requests per second on a single $80/mo managed virtual machine. Microservices introduce network latency, distributed tracing overhead, deployment coordination nightmares, and eventual consistency bugs.
2. The Multi-Purpose Power of Modern PostgreSQL
Before adding Redis, Elasticsearch, and DynamoDB to your architecture stack, verify what PostgreSQL already provides natively: JSONB indexing for document store needs, Full Text Search via tsvector, LISTEN/NOTIFY for simple pub/sub, and pgvector for semantic embeddings.
- Choose boring, well-understood technologies so your team solves business problems, not infrastructure puzzles.
- Invest in automated CI/CD and single-command local dev environments on Day 1.
- Refactor to distributed systems only when single-node vertical scaling thresholds are mathematically exhausted.