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Notes and build logs.

Writing in public about product engineering, AI-native workflows, and what I'm building.

A monochrome editorial diagram of a five-stage cycle, brainstorm to spec to plan to execute to verify, connected by arrows, with a small review-gate checkbox on each step.

Latest

From idea to shipped, my AI-native engineering workflow

Typing was never the bottleneck. I ship fast by compressing the loop between an idea and verified, reviewed code, using spec-driven planning, parallel agents and verification gates rather than by generating more code faster.

May 28, 2026 · 12 min read

Earlier posts

Engineering a compliance-grade SaaS, with multi-tenancy, RBAC and audit trails

May 22, 2026 · 14 min read

How I replaced a Belgian accounting practice's email-and-spreadsheet workflow with one type-safe API serving three role-scoped portals, carrying a full Belgian AML compliance module, 92+ RBAC permissions and an append-only audit trail underneath.

Build log, shipping this site with Next.js 16, Tailwind v4 and a monochrome design system

May 10, 2026 · 11 min read

How cjjutba.dev is put together. A no-radius monochrome design system, Next.js 16's sharp edges, two modals that share one pattern, and a content-as-data model with zero MDX. The post you're reading is the page it describes.