Independent architecture & software engineering

Get your software
project moving.
Build room to grow.

Fieldstate is Brett Smith’s independent architecture and software engineering practice. Helping businesses untangle existing systems, make sound technical decisions, and deliver working software.

Discuss your project Find a starting point

Based in New Zealand · Working with NZ & Australia

01 / A place to start

A clear first engagement.
A useful next step.

Clear software decisions, grounded in evidence. Start with a specific problem and an agreed scope, and leave with findings, priorities or a brief you can act on.

Scope, deliverables and commercial terms are agreed before work begins. Further implementation can be scoped from what the first engagement reveals.

02 / The person behind the practice

Work directly
with Brett Smith.

Brett Smith

Platform architect & software developer
Aotearoa New Zealand

One person connecting the technical decisions to the work that follows.

I’m Brett, the architect and developer behind Fieldstate. I help businesses understand how their software fits together, decide what needs to change, and carry those decisions into implementation.

You work directly with me to define the problem, review the options and agree the next step. The starting point can be a focused assessment, an improvement plan or a clear definition of what needs to be built.

Explore the public engineering work

03 / How the work happens

Define the system.
Then build it.

Make the important decisions visible, test them through delivery, and leave a clear record for whoever works on the system next.

  1. 01 / Map

    Understand what is happening.

    Look at the workflows, code, data and dependencies. Separate what is known from what still needs testing.

  2. 02 / Structure

    Agree what should change.

    Frame the options and trade-offs. Set the scope, priorities and acceptance criteria before implementation.

  3. 03 / Deliver

    Put the decisions to work.

    Deliver the agreed assessment, improvement plan or supplier brief. Walk through the findings and next steps; scope implementation separately where needed.

AI-assisted, human-accountable

AI can assist specification, implementation and validation. Brett remains accountable for architectural decisions, review and acceptance of the work.

04 / Open engineering

Inspect the thinking.
Explore the work.

Public projects and tools show the engineering ideas behind Fieldstate. These are independently developed projects, rather than client case studies; their repositories document the current state.

Open Standard

OASP

The Open Agent Session Protocol. A vendor-neutral contract for a managed agent with sessions, memory, and tools, shaped on the Anthropic Managed Agents API and written as the first step toward Loom.

LLM Gateway

Loom

An LLM gateway that gives you one managed agent over any provider. You write against a single contract; Loom uses native provider features where they exist and supplies them itself where they don't, levelling every provider up instead of down.

Open Toolkit

WorkSpec Studio

The open core of WorkSpec: costed architecture decisions as reviewable YAML artifacts, and C4 diagram tooling in progress.

Product

Slipway

A local-first task board with a built-in learn-loop. ADHD-first focus, spaced repetition, no server, no accounts.

Research / 2026

State of AI-Assisted and Agentic Development

Read Fieldstate’s report on the changing software delivery landscape.

Technical capabilities Web · Mobile · Backend · Desktop

Technology follows the system.

React and TypeScript for the web, Expo for mobile, .NET and Rust for backend systems, and Tauri for desktop. The choice depends on the workflow, operating constraints and people maintaining it.

Work can span system architecture, delivery stabilisation, platform engineering and architecture embedded in implementation.

Mobile
Expo
Web
TypeScript, React
Backend
Rust, .NET
AI + Infra
TypeScript, Rust
Desktop
Tauri

05 / Start a conversation

What needs
to move forward?

An AI-built app, a project that needs untangling, or a brief for suppliers. Tell Brett what is happening and what you want to change.

Email Brett hello@fieldstate.nz