01 — The problem
What has to stop going wrong.
You need a system, not a feature: something transactional, multi-user, deployed, and still correct in a year when someone else is maintaining it.
02 — What we build
The system behind the surface.
A backend where the consistency boundary is a database transaction rather than a hope, a typed interface on top, migrations that reverse, and the deployment and release pipeline underneath. In your repository from the first commit.
01
Bound it
Define the failure modes, permissions and consistency rules before the interface hides them.
02
Build it
Ship production code in your repository, in phases with a written exit state.
03
Try to break it
Test the paths that carry money, identity, isolation and irreversible decisions.
03 — Decision material
Know whether it fits before a call.
A strong fit
- A business replacing spreadsheets or disconnected tools
- A founder moving from a brief to a first dependable release
- A team whose current system cannot carry another workflow or user group
What leaves with you
- Written scope, acceptance rules and architecture
- Responsive interface and typed API
- Schema, reversible migrations and automated tests
- Deployment, runbook and handover
04 — Evidence
A claim should lead somewhere.
A full back office — till, stock, purchasing, invoicing and accounts — running as one product.
Shown in Nexora AI — Retail and trading