Shopify product development

Shopify apps, themes and storefronts built around your business.

MerchWeave designs and builds custom Shopify apps, Liquid themes and Hydrogen storefronts. We can extend the store you already have, replace a brittle workflow or build the whole commerce surface from a clean foundation.

  • 01Custom apps
  • 02Liquid themes
  • 03Headless storefronts
Abstract commerce system connecting a Shopify app, theme blocks and a storefront
MW / SHOPIFY Build the layer your store actually needs.

The Shopify layer matters

Use the right foundation for the job.

Horizon, Dawn and Hydrogen solve different problems. We choose the layer around your catalog, operations, editor workflow and customer experience — not around a trend.

01 / APP BUILDADMIN → STORE
Abstract custom Shopify app interface connected to commerce data

Custom Shopify apps

Build the workflow your team keeps patching by hand. We connect Shopify admin, your services and the customer-facing surfaces that matter through APIs, app extensions, webhooks and backend logic.

  • Embedded admin tools and internal workflows
  • Checkout, customer account and theme extensions
  • Integrations with the systems around your store
02 / LIQUID BUILDEDITOR → STORE
Abstract Shopify theme blocks and storefront layout system

Horizon, Dawn and custom themes

Horizon brings reusable theme blocks to Shopify’s current design foundation. Dawn is a lean, performance-minded Liquid reference. We modify either carefully, or build a custom theme architecture when your store needs its own system.

  • Reusable sections, blocks, templates and metafields
  • Responsive, accessible and editor-friendly storefronts
  • Ground-up builds from a minimal Shopify foundation
03 / HEADLESSAPI → EXPERIENCE
Abstract Hydrogen headless storefront connected to Shopify APIs

Hydrogen storefronts

Hydrogen is the headless route: React Router on the front end, Shopify’s Storefront and Customer Account APIs underneath, with Oxygen or another host for delivery. We use it when a theme cannot comfortably express the storefront you need.

  • Custom product and merchandising experiences
  • Multiple data sources behind one storefront
  • Release and API-version maintenance after launch

What we can change or build

From one stubborn workflow to the whole storefront.

01

Existing themes

Extend Dawn, Horizon or a custom Liquid theme without leaving the editor full of fragile overrides.

02

Theme systems

Turn repeated layouts into reusable sections, blocks, templates and content structures.

03

App extensions

Put the right workflow in admin, checkout, customer accounts, themes or automation surfaces.

04

Integrations

Connect the store to the ERP, CRM, fulfillment, feeds and internal tools around it.

05

Ground-up builds

Start with a minimal foundation and shape the architecture around the catalog and the merchant team.

06

Ongoing development

Keep the app, theme and storefront useful as Shopify APIs, requirements and operations change.

Choose by constraint

Theme or Hydrogen? Start with the constraint.

LIQUID THEME

Usually the right fit when Shopify-native merchandising, the theme editor and a fast path to launch are central to the store.

HYDROGEN

Worth considering when you need a custom frontend, several data sources or a product experience a theme cannot comfortably express.

How the work runs

A technical partner from first brief to next release.

  1. 01

    Map the constraint

    We inspect the current theme or app boundary, data and merchant workflow.

  2. 02

    Choose the layer

    We select an extension, theme or headless architecture that fits the job.

  3. 03

    Build and test

    We ship reviewable slices with responsive, accessibility and integration checks.

  4. 04

    Keep it healthy

    We stay involved for platform releases, API changes and the next useful iteration.

Questions brands ask

Specific answers before the first call.

01Can you modify an existing Dawn or Horizon theme?

Yes. We first map the theme structure, editor workflow and existing overrides, then make the smallest durable change. That can mean new sections and blocks, a cleaner component boundary or a focused performance and accessibility pass.

02When should a store use Hydrogen instead of a Liquid theme?

Liquid is usually the right fit when Shopify-native merchandising and the theme editor are central to the store. Hydrogen is worth considering when the storefront needs a custom frontend, several data sources or an experience that a theme cannot comfortably express.

03Can you build a Shopify theme from scratch?

Yes. We create a ground-up theme architecture around the catalog, content model and merchant workflow. A minimal Shopify foundation such as Skeleton can provide the starting structure without forcing a heavily pre-styled theme into the project.

04Can an app and theme be developed together?

Yes. We can connect an app backend and its admin or checkout extensions to theme blocks, sections and storefront behavior so the merchant workflow and customer experience are designed as one system.

Start with the part that is stuck

Tell us what needs to change.

Describe the store, the constraint and the outcome you need. We’ll map the smallest sensible Shopify surface to start with.

Discuss your project