---
type: Work
title: Development
description: Applications, agent tooling and integrations built with A2A agent tooling on local-first infrastructure — Yard Yield, Coffee Quest and CradleSync live on the App Store, Coffee Quest on Google Play, Flow in production use, and Photo Review and Doomsurfing in build.
resource: https://padginton.com/development
tags: [development, ios, android, a2a, agents, local-first]
status: draft
generated: { by: agent:claude-fable-5-1, at: 2026-09-13T00:00:00Z }
---

# Development

Software designed and built by [Mark Padginton](person.md), running on the
[sovereign AI environment](sovereign-ai.md).

## Shipped

- [Yard Yield](apps/home-harvest.md) — Australian edible-garden companion (iPhone and iPad, App Store), <https://yardyield.app>
- [Coffee Quest](apps/coffee-quest.md) — independent cafe discovery (iPhone and Android, App Store and Google Play)
- [CradleSync](apps/cradlesync.md) — shared baby care record (iPhone, App Store), <https://cradlesync.app>

Every app here was designed and built by AI agents working over A2A — agents handling research,
engineering, media and review — with human decision-making, testing and App Store submission.

## Production tooling

- [Flow](flow.md) — self-hosted project control plane in production use to plan and deliver the apps on this page

## In development

- [Photo Review](apps/photo-review.md) — a calmer way to review a photo library (iPhone and Android), <https://photoreview.app>
- [Doomsurfing](apps/doomsurfing.md) — timed breaks from selected social apps (iPhone and Android), <https://doomsurfing.app>

## What is built

Applications taken far enough to be used daily; agent tooling and integrations (MCP tooling, agents
that discover one another and delegate work); and local-first systems that run on infrastructure the
owner controls.