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Selected work

Six projects, measured before and after

Storefronts, booking, internal tools and a couple of rescues. Each case study shows the starting numbers, the decisions we made and what changed once it shipped.

#ProjectClientServicesYear

hearthlinegoods.com/pricing

New · Mobile app

Your studio, booked solid

One calm workspace for bookings, payments and the messages in between.

Book a demoSee how it works

FieldcraftTallowKestrelNorthwindCopperline

Live tracking

See every job and vehicle on one map.

Audit trail

Every change, signed and dated.

Instant payouts

Paid the same day, every day.

9:41

Hearthline Goods

Your studio, booked solid

One calm workspace for bookings, payments and the messages in between.

Live tracking

See every job and vehicle on one map.

Rebuilding a homewares storefront for mobile buyersHearthline GoodsHeadless commerce, Performance, Checkout UX2025 02

Online booking for a physiotherapy clinic networkCobalt PhysioWeb app, API integration, Accessibility2024 03

app.brightwellfreight.com/board

Sprint 24

Search…⌘K+ New

Backlog 3

APISearch by plate number4

iOSRate-limit webhook retries7

WebLoad test checkout1

In progress 5

WebInvoice PDF layout4

InfraDark mode tokens5

DesignFix iOS push badge9

Review 6

DesignMap clustering on zoom1

APICSV export for finance4

Done 4

iOSOffline sync for drivers6

WebOnboarding checklist9

InfraMigrate auth to passkeys8

Blocked 5

InfraRefund flow edge cases6

Replacing 14 spreadsheets with one dispatch dashboardBrightwell FreightInternal tools, Data migration, Training2024 04

forecast.pytest_forecast.pyREADME.md

118import polars as pl119from marrowco.models import Forecaster120121122def weekly_demand(df: pl.DataFrame) -> pl.DataFrame:123 """Forecast invoices per depot for the next 8 weeks."""124 model = Forecaster(horizon=8, seasonality=52)125 out = (126 df.group_by("depot", "week")127 .agg(pl.col("invoice_id").count().alias("n"))128 .sort("week")129 )130 # retrain only when drift > 4%131 if model.drift(out) > 0.04:132 model.fit(out)133 return model.predict(out)

Mei Tanreviewed · 2m

Nice — can we add a span attribute for the region here?

Moving a 9,000-page publisher off a legacy CMSMarrow & CoCMS migration, SEO preservation, Editorial tooling2023 05

An offline-first app for field engineersFernway UtilitiesMobile app, Offline sync, Integrations2025 06

pagespeed.lumenpantry.dev/report?url=lumenpantry.com

lumenpantry.comMobileDesktopOct 7, 2026 · Moto G Power · Slow 4G

Performancewas 39

Accessibilitywas 71

Best practiceswas 78

Core Web Vitals Passed

LCPLargest contentful paint0.8 s

INPInteraction to next paint115 ms

CLSCumulative layout shift0.03

Fixed in this release

Reserve space for embedsCLS −0.2

Serve images as AVIF−1.6 s

Remove render-blocking CSS−674 ms

Network waterfall 7 requests · 207 kB

Performancefrom 39 → 100−61% JS

A performance rescue for a grocery subscription appLumen PantryPerformance audit, Next.js, Database tuning2026

Tell us what is slow, broken or still in a spreadsheet

Send a short brief. Within two working days you get a reply from an engineer, not a sales rep, with first questions and a rough range.

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Booking projects from February 2027

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