Studio
One person. The whole project.
Want to know who will build your site? Kacper Baranowski, from the first call to launch. Strategy, design, code and SEO in one pair of hands, with no hand-offs along the way.

Who is behind it
You talk to the personwho builds your site.
If you are here, you probably want to check who you would be trusting with your site. My name is Kacper Baranowski. I design and code websites, online stores and web apps for companies that want their site to bring in inquiries and sales.
Your project stays in one pair of hands the whole way: you meet me on the first call, I design, code and launch it, and after launch I am the one you write to when something needs fixing or adding.
Kacper Baranowskifounder of eriz.studio
- for a free quote with a schedule
- 48 h
- to reply to your message (business days)
- 1 day
- for a typical business website
- 2–6 wks
- of the code, content and accounts is yours
- 100%
Ruleswe stick to
Before you write, check whether this way of working suits you. You will see these rules in your own project.
- 01
No templates
We start by asking what your customers are looking for and what they should do on the site. Layout, visuals and code are built around that answer, and the Figma source files stay with you.
- 02
One person, start to finish
The brief, the design, the code and the launch are run by the same person. When you have a question, you write to someone who has known your project since the first call.
- 03
Speed is part of the design
Animation and 3D load only when they are needed. We measure performance before hand-over, and the bar is at least 85 points in PageSpeed Mobile.
- 04
Your accounts, your code
The domain, hosting, content panel, code and access are registered to you. You can grow the site with us or with anyone else, without asking our permission.
- 05
Specifics in writing
Within 48 hours of the call you get the scope, price and schedule in writing, plus a list of what the scope does not cover.
- 06
We stay after launch
For 30 days after hand-over we fix bugs in our code for free. Then, if you want, we monitor, update and grow the site as your business changes.
How we work
Four stages, the same for a website, a store or an app. Before each one you know what you will get and when.

- 01
Conversation and brief
You tell us what you want to achieve and we ask questions. Scope, schedule and quote reach you within 48 hours of the call.
- 02
Design
We design in Figma, screen by screen, with your feedback along the way. The source files stay with you.
- 03
Code and launch
We code to the design, test on real devices and check accessibility. The site goes live on your domain.
- 04
Support and growth
For the first 30 days after handover we fix bugs in our code for free. After that we support the site in a scope we agree together.
What we build with
We pick the tools for what the site has to do. These are the ones we work with every day.
Frontend
Next.jsAstroReact
Astro for websites, Next.js for apps and stores, with rendering (SSR, SSG or ISR) chosen by how often the content changes.
Motion
GSAPThree.jsLenis
Animation and 3D, as on this site, loaded so they do not hurt the PageSpeed score.
CMS
SanityStoryblokShopify
You change texts, images, pages and products yourself, in a panel on your account.
Full-stack
SEOPWAIntegrations
Visibility in Google, apps that also work offline, and connections between the site and your CRM, payments and couriers.
What we cando for you
Five kinds of projects and the eight services they are made of. Open the one that fits your situation.

Business websites
A business-card site from PLN 3,000 net, a site with a content panel from PLN 4,500. Ready in 2–6 weeks, with technical SEO and WCAG 2.2 AA accessibility.

Online stores
A store on Shopify or headless, with BLIK, Przelewy24, InPost and DPD. From PLN 8,000 net, live in 3–12 weeks.

Industry websites
A website for a hotel, restaurant, law firm, accounting firm, construction or transport company. From PLN 4,500 net, 2–6 weeks.

Web application
A client dashboard, SaaS or MVP on Next.js and React, with sign-in, database and integrations. From PLN 15,000 net, 4–16 weeks.

Mobile app
PWA or Capacitor: one codebase for iOS and Android, push and offline mode. From PLN 12,000 net, 3–12 weeks.
Questionsabout the studio.
Want to talk?
Write a few sentences about what you want to build. You get a reply within 1 business day.
Start with a free quoteWho is behind eriz.studio?
Kacper Baranowski. It is a one-person studio: I design, code and run every project myself, from the first call through launch to support. When you write, I am the one who replies.
Why a “studio” if it is one person?
Because you get what you expect from a studio: a four-stage process, a written quote, a schedule with dates and support after launch. The difference is that from the brief to launch you talk to the same person, and that person is accountable for the result.
Where is the studio?
In Ludwików, in the Masovian region of Poland. We work remotely with companies across Poland and abroad: calls happen online, you follow progress live on a staging address, and hand-over and access transfer are remote too.
What does working together look like?
A call and a brief, then design, code and launch, and after launch support and growth. You get a quote with scope and schedule within 48 hours of the call, and only then do you decide whether we go ahead.
Do you only build from scratch, or also work on existing sites?
Both. If you already have a site, we can take on SEO, integrations or support without rebuilding everything. We start with a review of what is there and tell you what can stay and what needs to be redone. New projects run from strategy to launch.
Will the website be mine?
Yes. The code, content, domain, hosting and accounts are yours, and so are the Figma source files. After launch you get access and documentation, so you can grow the site with us or with anyone else, without asking us first.
How do I start?
Use the form or write to [email protected]: what you want to build and by when. We reply within 1 business day; the quote is free and ready within 48 hours of the call.
Got a project?
Tell uswhat you need.
Two sentences: what you have and what you need. We will ask the rest on a call.
- Reply
- within 1 business day
- Quote
- free, within 48 h
Got it.
Your message went straight to Kacper. He replies by the next business day at the latest.

Strategy and direction
Design that sells
Build and code
SEO and analytics
Support and growth
Integrations and automation
Apps and PWA
Animation and 3D