Jakub standing in a suit beside a white horse sculpture

Jakub Halbrštát

Web developer & AI automation

I build websites, web apps and AI automations for businesses. A simple site in a day, a full web app in about a week.

One person builds the whole thing: the backend, the AI, the interface and the brand. No hand-offs, no agency queue, no monthly fee for nothing.

[ work; ]

Selected projects

app.cuppa.cz

Cuppa landing page: a phone showing an English conversation with an AI tutor

AI English tutor

Cuppa. English through five-minute AI voice calls.

Live AI voice calls: speech to text, a language model and text to speech, streamed in chunks so replies start fast.
AI feedback after every conversation, with flashcards and exercises generated from your own mistakes.
Company accounts. An employer hands out a registration code and staff join their company's plan.

Crypto charts & backtests

Basilisk. Charts and strategy backtests for Bitcoin and other crypto futures.

Backtests that include fees, slippage and funding rates.
Built on my research into market structure and price action.
Self-hosted on a Hetzner server, with its own domain and deployment.

Instagram autopilot

SIM. An Instagram account that runs itself.

Generates post text and visuals with AI.
Plans and publishes posts automatically.
Runs on its own once it is set up.

streamchair.com

Creator platform

Streamchair. Where creators post, stream and get paid.

Social feed, creator profiles, messages and rewards, on a working backend with accounts and file storage.
Written strategy: the 7P marketing mix, pricing and monetisation model, three competitors and a SWOT analysis.
Brand identity: logo, colours and type.

All projects

[ services; ]

What I build

Websites

A fast, clean site for your business. Designed, written, built, put on your domain and set up for search.

from 1 day

Web apps

Accounts, dashboards, payments, databases. A full backend and frontend, built by one person.

about 1 week

AI automation

Tools that do repetitive work for you: content, emails, data, reports. Connected to the systems you already use.

3 days of work

Brand & design

Logo, colours, type, packaging and the files to use them anywhere.

a few days

[ approach; ]

How I work

Fast.
A simple website the same day. A polished one in about three days. An AI automation is about three days of work, plus a week for access, approvals and replies.
No fees for nothing.
A static website has a one-time price and no monthly fee. You own the domain, the code and the accounts.
Fixes are free.
If something I delivered doesn't work, I fix it at no cost. New features are a separate job.
Running costs at cost.
If an automation runs on a paid server or AI service, you pay what it costs plus a small fee for keeping it running.
Full attention.
When I take a project, I work on it until it is done. You won't wait weeks for a reply.

I'm 19, from Pardubice, and I just finished Delta SŠIE, a school of IT and economics. For the last two years I've built my own products, from an AI language app to a neural network trained on a terabyte of market data. When something interests me, I go all the way in.

More about me →

Tell me what you need.

What it is, when you need it, and what isn't working today. I reply with a plan and a price.

jakub.halbrstat@gmail.com

+420 607 037 757