Quill

The senior accountant's exoskeleton — an AI ops layer for UK accountancy practices

Public overview — source code is private. This repo describes what the product does and how it's built.

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The problem

UK accountancy practices run on senior people doing high-judgment work surrounded by repetitive, document- and deadline-driven tasks. There's huge leverage in AI — but only if it augments the senior accountant's judgment rather than replacing it, and only if it respects the profession's accuracy and compliance bar.

What Quill does

Quill is an AI operating layer for a modern accountancy firm — designed as an exoskeleton for the senior accountant:

• Augments, never autopilots — built on a set of immutable principles that keep a qualified human in control of every judgment.
• Practice-workflow aware — structured around how a real firm actually works, not a generic chatbot.
• Accuracy & compliance first — correctness and traceability are treated as non-negotiable, ahead of ship-speed.
• Built with practitioners — developed in close partnership with a working UK accountancy practice.

Status: In active build, phased delivery.

Architecture (high level)

Practice data & documents  ─►  grounded AI workflows (task-specific)
                                     │
        senior-accountant-in-the-loop (human authority by design)
                                     │
              React workspace · API · Postgres

Tech

TypeScript · Node.js · React · PostgreSQL · LLM-powered workflows (Google Gemini + others) · Biome · principle-driven architecture with an explicit decision log.

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Built by Dominic Gonsalves · open to contract / fractional AI roles