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Acorn Code Lab

Products

Each of these started as a piece of client infrastructure that turned out to be more durable than the project it was built for.

Owning products changes how we build for clients: we carry the operational cost of our own decisions, which is the fastest way to learn which ones were wrong.

01

Ledgerline

In market · Since 2023

Reconciliation infrastructure for teams running more than one system of record.

Ledgerline continuously asserts equality between two or more financial data sources and surfaces breaks with the transaction context needed to resolve them. It came out of our core-banking migration work, where the reconciliation harness we built proved more durable than the migration itself.

Who runs on it

Finance operations and platform teams in banking and fintech

TODO: link to product site or request-access flow once available.

Product diagram: Ledgerline reads two systems of record and asserts equality per transaction, continuously rather than as a nightly batch. Matched records pass through with no action; breaks are surfaced with full transaction context.
02

Fieldbase

In market · Since 2024

Offline-first operations tooling for distributed field and depot teams.

A configurable data-collection and workflow layer for teams working where connectivity is unreliable. Deterministic conflict resolution and local-first storage are the core of the product, not a feature flag.

Who runs on it

Logistics, agriculture and field-services operators

TODO: link to product site or request-access flow once available.

Product diagram: Fieldbase treats the device local store as the primary write target rather than a cache, accepting writes offline into an ordered event queue that crosses an intermittent connection to a deterministic merge resolving by event order, never by device clock, producing canonical state.
03

Threshold

Private beta · Since 2025

Evaluation harness for teams putting language models into regulated workflows.

Threshold pins model versions, runs graded test suites against every change, and produces the decision-level audit records that compliance functions ask for. Built because we needed it, and kept because our clients did too.

Who runs on it

Engineering and risk teams deploying AI in regulated sectors

TODO: link to product site or request-access flow once available.

Product diagram: Threshold routes proposed model versions, prompt revisions and retrieval configuration changes through a graded test suite against representative inputs. A gate either ships the change with its version pinned or blocks it with a score, and every decision is stored with the inputs and version that produced it.

Why it matters to you

A studio that only bills hours never finds out which of its decisions were expensive.

Running our own products means we absorb the maintenance cost of shortcuts, the support burden of unclear interfaces, and the operational weight of over-clever architecture. That experience is what we bring to your roadmap — not as an opinion, but as a bill we have already paid.

How that shapes our practice

Common questions

01

What products does Acorn Code Lab own?

Acorn Code Lab operates Ledgerline, reconciliation infrastructure for teams running more than one system of record; Fieldbase, offline-first operations tooling for distributed field and depot teams; and Threshold, an evaluation harness for teams deploying language models into regulated workflows. Each began as client infrastructure that proved more durable than the project it was built for.

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