Custom stores & themes
Themes built lean with custom sections your team can edit — not a bought template wrestled into shape and left slow.
Web · Shopify
Shopify development for startups — owned by seniors, not freelancers
We build custom Shopify stores, private apps and checkout work for startups — a small senior studio that owns the outcome, not a marketplace of freelancers who vanish after handover. Custom where it counts, fast everywhere.
Senior
the scoper ships it
Custom apps
when a setting cannot
Fast
measured in Core Web Vitals
A cheap Shopify store is thirty apps deep and slower every month.
Every bolted-on app injects scripts until the store crawls and nobody remembers what half of them do. We build custom where a theme setting cannot reach, cut the app bloat that is throttling load time, and measure speed in real numbers — because on Shopify, slow is lost revenue.
What we build
The parts that decide whether it works.
Custom Shopify apps
Public and private apps for the jobs a setting cannot do — custom workflows, integrations with your ERP, CRM or fulfilment, built properly.
Checkout customisation
On Shopify Plus: checkout extensions, custom validation, upsells and branded flows through the supported APIs — with an honest read on the plan's ceiling.
Speed & Core Web Vitals
We audit what each app costs you in load time, cut the dead weight, tune the theme, and prove it against real Lighthouse numbers.
How we work
Scoped, shipped weekly, handed over clean.
01
Scope the build
Store, app or checkout — we define exactly what is custom and what the platform handles, with a fixed estimate before any code.
02
Build in the open
Working previews each week in a live environment, so you steer the build instead of waiting for a launch-day reveal.
03
Launch & support
Shipped, measured for speed, and handed over clean — with a senior team still here when you need a change months later.
Where it fits
What teams hire us to build.
- Custom storefront for a launching startup
- Private app for a bespoke internal workflow
- Shopify Plus checkout extensions and upsells
- Integrating Shopify with an ERP or fulfilment system
- Rescuing a slow, app-bloated store
- Migrating to Shopify from another platform
Questions
What clients ask before we start.
Do freelancers or a senior team build my store?
A senior team that owns the outcome. Duskel is a small studio, not a marketplace of freelancers who vanish after handover — the person scoping your build is the person who ships it, and we are still here when you need a change six months later.
Can you build a custom Shopify app or private integration?
Yes — public apps for the store, custom private apps for your own workflow, and integrations that sync Shopify with your ERP, CRM or fulfilment. When a theme setting cannot do the job, an app can, and that is where most of our Shopify work lives.
Can you customise Shopify checkout?
On Shopify Plus, yes — checkout extensions, custom validation, upsells and branded flows through the supported checkout APIs. On standard plans we get as far as the platform allows and are honest about the ceiling before you pay for Plus expecting more.
My store is slow. Can you fix it?
Usually. Most slow Shopify stores are drowning in third-party apps and unoptimised images injecting render-blocking scripts. We audit what each app actually costs you in load time, cut the dead weight, and tune the theme — measured against real Lighthouse and Core Web Vitals numbers.
How long does a custom Shopify build take?
A themed store with custom sections is typically a few weeks; a custom app or checkout work adds to that depending on scope. You get a fixed estimate before any code and working previews each week, not a black box until launch day.
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