Open for new projects · Karol Kościółek

I build AI products in days, not months.

Contsy is my AI product studio. You bring the idea, I turn it into a working product, fast, with AI as my engineering team.

See the work Start a project

claude-code — contsy-studio

  1. karol make it run on 8 GB graphics cards
  2. ✓ Lite model set added · tests passing
  3. karol one-click install for non-technical people
  4. ✓ install.bat: pick Lite or Full, everything downloads
  5. karol ship it
  6. ✓ Contsy Studio is live on GitHub
3 days
from idea to Contsy Studio v1
0
lines of code typed by hand
1
builder, so you talk to the person who builds
100%
AI-native workflow, end to end

Selected work

Real products. Shipped.

Every project here was designed, built and launched by me, with AI doing the typing.

01Open source · Local AI · Windows app

Contsy Studio

Create a consistent AI character once. Get endless photos and talking videos, 100% on your own PC.

The problem

AI content tools are cloud subscriptions, faces drift from image to image, and your photos leave your computer.

What I built

A complete local studio: train a character from 20 photos, generate 1080p images and talking videos with voice and lip sync, plan whole content series with a local AI, and let Autopilot fill idle GPU time.

  • 3 daysbuild time
  • 8 GBmin. GPU memory
  • 100%local & private
  • GPL-3.0open source
  • ComfyUI
  • Wan 2.2
  • Qwen Image Edit
  • Z-Image Turbo
  • SeedVR2
  • VoxCPM2
  • LatentSync
  • Python
View on GitHub ↗ Demo on YouTube ↗

How I work

No specs. No endless meetings. Fast loops.

  1. 01

    Tell me the outcome

    A few sentences or a voice note is enough. I turn it into the technical plan.

  2. 02

    Working prototype in days

    You click through a real product early, not slides or mock-ups.

  3. 03

    Iterate in hours

    You say what to change. I ship it, often the same day.

  4. 04

    Launch and hand-off

    Deployed, documented, tested, and the code is yours.

What I build

If it runs on AI, I can ship it.

AI web apps & MVPs

From idea to a product people can log into and use. Ideal for testing a business idea quickly.

Local & private AI

AI that runs on your own hardware. No subscriptions, and your data never leaves the building.

Image, video & voice pipelines

Generative media tools built on open models, like the ones inside Contsy Studio.

AI agents & automations

Assistants and workflows that take repetitive work off your team's plate.

About

Hi, I'm Karol. I love vibe coding.

I've been hooked on AI since the very first models came out, and I haven't stopped building with it since.

I don't write code by hand. I direct it. I design the product, make the technical calls and test everything, while Claude Code does the typing at a pace a traditional team can't match. That's my superpower.

Contsy is my micro agency for AI products. Right now it's just me, which means you talk directly to the person who builds your product, and decisions take minutes, not weeks.

Contact

Got an idea? Let's build it.

Tell me what you want to exist. I'll reply with how I'd build it and how fast.

hello@contsy.com GitHub ↗