AI CASE STUDY -- GENERATION 3 BREAKTHROUGH

The AI That Collapsed the Stack

Asked to build a neighborhood energy marketplace, the AI threw Kubernetes, Rust WASM, and Redis at the problem. Six generations later, it discovered PostgreSQL alone could do all their jobs.

Kubernetes Rust WASM Redis PostgreSQL

Architecture Evolution

From 4 services to 1. One database doing 3 jobs beat 3 tools doing 1 job each.

Kubernetes
CRDs, orchestration
Rust WASM
Worker compute
Redis
Queue + pub/sub
🐘
PostgreSQL
Storage

Generation 1: four separate services, maximum complexity

PostgreSQL Does Everything

Advisory Locks

LISTEN / NOTIFY

SKIP LOCKED Queries

Fitness Across Generations

84 89 94 Gen 1 Gen 2 Gen 3 Gen 4 Gen 5 Gen 6 93.3 -- BREAKTHROUGH

The Neighborhood

Solar producers and consumers, coordinated by a single PostgreSQL instance

PostgreSQL Coordinator -- advisory locks, LISTEN/NOTIFY, SKIP LOCKED