Slinger
A stalled hospitality app rebuilt from the floor up, and shipping monthly the whole way — CV-free hiring, verified on-site check-in and self-service payouts.
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React Development
React where Next.js cannot go.
Next.js covers most of what we build for the open web, and it has its own page. React on its own is what we reach for when the application has to live inside somebody else's shell: a merchant-only admin embedded in the Shopify dashboard, a native app in both app stores, or a headless storefront running on a commerce platform's own edge runtime.
That is a different discipline from building a site. You inherit the host's design system, its authentication, its navigation and its performance budget, and the job is to be indistinguishable from the platform while doing the thing the platform cannot do on its own.
Capabilities
What we build with React
Embedded Shopify admin apps
Merchant-only pages built on Shopify Polaris and App Bridge, running inside the Shopify dashboard — product sync, refunds, size guides and Salesforce bridging.
React Native in both stores
Expo and EAS Build pipelines shipping a single TypeScript codebase to the App Store and Google Play, with over-the-air updates where they earn their keep.
Headless storefronts
Hydrogen on Remix deployed to Shopify Oxygen, pairing the Storefront API with a headless CMS for editorial control over a commerce catalogue.
Back-office and internal tools
React Admin over a REST or CRUD data provider, where the fastest honest answer is a generated admin rather than a bespoke one.
Server state handled properly
TanStack Query for caching, invalidation and optimistic updates, instead of hand-rolled loading flags scattered through components.
Native device capability
Camera, maps, biometrics, health data, push and background tasks through the React Native ecosystem — with the permission flows that pass store review.
The Stack
What is actually in our React projects
Not a wish list. Every library below is running in a repository we maintain.
Core
- React
- TypeScript (strict)
- Vite
- React Router
Native
- React Native
- Expo
- EAS Build
- React Navigation
- Reanimated
- Skia
- VisionCamera
- MMKV
Platform shells
- Shopify App Bridge
- Shopify Polaris
- Hydrogen
- Remix
- Oxygen
- React Admin
State & forms
- TanStack Query
- Redux Toolkit
- MobX State Tree
- React Hook Form
- Zod
- Yup
UI & media
- Radix UI
- shadcn/ui
- Recharts
- Chart.js
- Lottie
- Notifee
Testing & delivery
- Jest
- React Testing Library
- Maestro
- Playwright
- Fly.io
- GitHub Actions
- Crashlytics
Engineering Practice
How we work in React
Choosing the stack is the easy part. These are the decisions that determine whether the codebase is still maintainable after we hand it over — and they are the same on every React project we run.
Our certificationsEmbedded apps are built on the host's own design system rather than a lookalike — a merchant should not be able to tell where Shopify ends and our app begins.
Server state goes through TanStack Query rather than bespoke loading and error flags, which is what keeps a growing React app from turning into a pile of useEffect.
React Native ships through Expo EAS, so a release is a pipeline with a build number rather than an afternoon on somebody's laptop with the signing certificates.
Mobile end-to-end journeys are covered by Maestro flows, because the failures that matter on a phone are navigation and permissions, not unit-level logic.
TypeScript runs in strict mode everywhere, including the embedded apps where the host platform's own types are the contract we are coding against.
Related Work
Where we have shipped it.
A hospitality app in both stores, a headless storefront on Oxygen, and React front-ends over bespoke platforms.
Palome
A headless Shopify Hydrogen storefront and bespoke drop-queuing system, taking a sustainable luxury brand from concept to launch in six weeks.
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Brawn
Credit-based booking, billing and trainer payouts for 50+ UK gyms — with 21 health checks that surface billing drift before a member does.
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Good Energy
Three years on a heat pump estimate journey — rebranded, re-platformed and moved to Zoho CRM without downtime, and held to WCAG 2.2 Level AA.
Read Case Study
Related
Related Service
Looking for the service rather than the stack?
React is how we build. If you would rather start from what you need delivered, our bespoke software development page covers scope, process and engagement.
Building on React?
Tell us what you are building — or what you have inherited. We will come back with a straight answer on scope and approach.
Get in Touch