We are Velkina.

A two-person studio in Istanbul. We build software, websites, and stores — one project at a time, no account manager in between.

The arsenal
RuleSell★ flagship
Marketplace

RuleSell

A marketplace where people buy and sell AI coding configurations.

Next.jsPrismaStripe ConnectPostgres
What we do

We're small on purpose. You brief the two people who build it — nothing gets handed down a chain.

Software
Web apps, internal tools, and the platforms a business actually runs on.
Websites
Marketing sites, portfolios, and landing pages that load fast and read well.
E-commerce
Custom Shopify themes the owner can run — edit products, prices, and pages without emailing us.
AI
Automation and integrations that run unattended: watching campaigns, moving data, answering in four languages. Things that stay on after launch.
Brand
Identity, naming, and the visual system around the product.
Selected work

Six projects we shipped and still maintain. Open any one for the brief, what we built, and what changed.

Open source

Tools we built for our own work and put out for anyone. Small, dependency-light, MIT-licensed.

All repositories
The two of us

Ömer Can Nalbant

Front-end, design, and business

Designs and writes the front end. Built this site by hand instead of buying a template. Would rather cut a feature than ship a slow page.

Baha Taşkın

Back-end, infrastructure, and operations

Builds the backends. Shipped the Stripe Connect payouts behind RuleSell and the rules engine that pauses Meta campaigns on their own numbers. Would rather delete code than add it.

Two people, three projects at a time. We pick what we say yes to, so nothing sits in a queue.

Contact

Tell us what you're building.

Send a few sentences about the project. We'll tell you honestly whether we're the right fit — and if we're not, who is.

Istanbul