01 — Hearthline Goods · 2025Rebuilding a homewares storefront for mobile buyersA themed storefront weighing 6.1 MB per product page became a headless Astro build that loads in just over a second on a mid-range phone, with a shorter checkout to match.View case study
Web development studio · est. 2017
We make websites fast and spreadsheets retire
Seven people, one shared obsession with Lighthouse scores, and a long list of spreadsheets that are now gently resting in an archive folder. Yours could be next.
- 60+
- projects shipped since 2017
- 1.2 s
- median LCP across launches
- 7
- people, every one hands-on
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.
We have worked with
- Hearthline Goods
- Cobalt Physio
- Brightwell Freight
- Marrow & Co
- Ostra Clinics
- Pinecrest Supply
- Fernway Utilities
- Lumen Pantry
Fieldnote Labs is six engineers and a designer who build web apps, storefronts and internal tools. Everyone who joins your kickoff call writes code on your project.
- 60+
- projects shipped since 2017
- 1.2 s
- median LCP across launches
- 7
- people, every one hands-on
- TypeScript
- Astro
- Next.js
- Remix
- React Native
- Postgres
- Shopify
- Playwright
Kind words
From the teams we built things with
04 notes · scroll →
They asked for our analytics before they asked about colours. Every decision in the rebuild was tied to a number, and the numbers moved.
Nadia OseiHead of E-commerce, Hearthline GoodsThe handover week was the best part. Our two developers now own the system, and the runbook has already saved one Saturday.
Tom FeldmanCTO, Pinecrest SupplyFixed price, weekly demos, no surprises. When the practice software API turned out worse than expected, they told us that week and showed us the plan B.
Martin AchebeOperations Manager, Cobalt PhysioSix weeks, and our Wednesday night support queue went quiet. They left us with budgets in CI that we still follow every sprint.
Sofia ReyesEngineering Manager, Lumen Pantry
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.
Booking projects from February 2027