A fully custom e-shop in React/Next.js. Headless architecture, your own API, no monthly fees to a platform. For projects where neither Shoptet nor Shopify is enough, unique workflow, high performance demands, complex B2B.
The final scope, price and timing are confirmed before work starts.
From listing to order
An e-shop does not sell on looks, it sells on the path. It runs through four stops and a customer can be lost at any of them. The whole path has to be built, not just the pretty first stop.
- 01listing: categories, filters, search
- 02product: variants, availability, delivery
- 03cart: a summary with no extra steps
- 04checkout: Stripe, invoice for B2B, your own API
The demo shows real pages of miqueen.cz, a custom store I built: the wine listing, a wine page and the cart; the +210% traffic is a result confirmed by the owner. More work is in the portfolio.
The buying path in a custom store in four steps on the real project miqueen.cz: listing, product, cart with the checkout beneath the page, and the store scrolling through.
Related work in practice
A concrete project with desktop and mobile previews. No illustrative mockup, just a real website, e-shop or digital product.
MiQueen
Custom e-commerce storefront, Custom e-shop for premium wine after moving away from a template-based setup. Goal: stronger control over UX, brand and product presentation.
What you actually get
No fog: what you get, who it fits and where a larger scope begins.
Clear deliverables
- e-shop architecture based on workflow, roles and systems
- category, product logic and purchase journey design
- custom Next.js frontend and data/API connections
- order tracking, conversion measurement and technical SEO
- mobile, checkout, email and performance testing
Best fit
- you have B2B pricing, roles, approvals or complex orders
- you need ERP, warehouse, API or internal system connections
- platform solutions limit you and you know why
Not a fit
- you sell a few products and Shoptet or Shopify is enough
- you need the fastest and cheapest start
- you have no budget for development, care and iteration
Scope boundaries
from€5,600
A custom e-shop from €5,600 applies to a clearly scoped first version. B2B portal, ERP, warehouse, individual price lists, multi-language, large catalogue or custom checkout increase the scope.
Custom projects
Every custom e-shop is unique. These prices are indicative, I'll propose the exact scope after a discovery workshop.
MVP
Ideal for: validating a business model, a single-market launch
from€5,600
Delivery 5-8 weeks
- Next.js 15 + React 19 frontend
- PostgreSQL + Prisma ORM
- Catalog + cart + checkout
- 1 payment gateway (Stripe or GoPay)
- Basic admin section for management
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- 1 payment gateway (Stripe or GoPay)
- Basic admin section for management
- Order email notifications
- Upload of up to 50 products
Pro
Ideal for: growing e-shops with turnover of 3M+ CZK/year
from€11,200
Delivery 8-14 weeks
- Everything in MVP
- B2B workflow + customer groups
- API integration (ERP, CRM, WMS)
- Advanced admin section with roles
- Marketing automation (Klaviyo, Resend)
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- Advanced admin section with roles
- Marketing automation (Klaviyo, Resend)
- Multi-currency + multilingual
- Reviews + Q&A + social proof
- SEO + structured data per product
Enterprise
Ideal for: several markets, B2B price lists and ERP integration
€22,000+
Delivery 16-30 weeks
- Everything in Pro
- Multi-warehouse + multi-vendor
- Advanced B2B (approval, quotes, RFQ)
- Deep integration (SAP, Dynamics, Oracle)
- Custom product configurators
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- Deep integration (SAP, Dynamics, Oracle)
- Custom product configurators
- Subscription / recurring orders
- Multi-store architecture
- Architecture ready for a security audit
- Support and availability under an SLA agreed in the contract
When the platform isn't enough
Shoptet and Shopify are enough for most e-shops. A custom solution makes sense where you need custom discount logic, a unique B2B workflow, integration into existing systems (SAP, Dynamics) or simply don't want to depend on a platform that raises its prices every year. Selling to companies with customer-specific price lists and invoice payments starts at the Pro tier and is covered on the custom B2B e-shop page.
A custom e-shop in Next.js + React means: no monthly platform fees (you pay no commission on turnover to a platform, but you do have running costs: hosting, database, payment gateway fees and maintenance), 100% your own code, any architecture, any integration. You host wherever you want, you change whatever you want, and if we end the collaboration, you get the full source code.
Stack: Next.js 15 + React 19 on the frontend, PostgreSQL / Supabase on the backend, Stripe / GoPay / Comgate for payments, modern cloud infrastructure for hosting. Tested enterprise-grade components, not experimental frameworks.
What custom means
What you concretely get out of the collaboration.
- 01
Headless architecture
Frontend in Next.js, custom backend API. You can later swap out anything (frontend/backend/DB) without a complete rewrite.
- 02
Your own API
Custom REST or GraphQL API. Integration with ERP, CRM, WMS, external services without compromises and without workarounds.
- 03
Maximum speed
Server-side rendering, edge caching and optimized images. Architecture prepared for strong Core Web Vitals even with large catalogs.
- 04
No platform lock-in
The code belongs to you. You pay no monthly platform fees and no commission on turnover, only running costs. You host wherever you want, even on your own server.
How it works
No unnecessary bureaucracy. Every step has a clear output and deadline, you always see exactly where we are.
- Typically
- 5-8 weeks (MVP)
- Steps
- 4
Discovery and architecture
1-2 weeksProcesses, integrations, volumes. Output: MVP scope, data model, price and timing.
MVP
5-8 weeksCatalogue, cart, checkout, payments, admin. Every milestone has a staging demo.
Integrations and extensions
by scopeAccounting, warehouse, ERP, B2B price lists, feeds. Added after the MVP launch, not before.
Launch and code handover
before launchTest orders, tracking, training. The complete source code is yours.
Common questions
The ones asked most. Missing something? Write to me, I reply within a few hours.
When Shoptet/Shopify have limits that block growth: a unique workflow, custom discount logic, complex B2B, deep ERP integration, high volume (platform fees have to be weighed against the cost of running your own solution). If a platform is enough, stick with it, custom is more expensive at the start.
A custom e-shop with no platform lock-in.
Tell me what you need and what frustrates you about existing platforms. I'll propose the architecture, stack and a scope estimate after a discovery workshop (free, 90 min).