Fullstack Developer | Master's Student

Matyas Krejza

I build everything from mobile and web apps to AI agents and diffusion image models.

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matyas@portfolio — zsh
Terminal animation in progress.

Selected work

My favorite projects

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ML

Nano-Catana

Custom diffusion image models trained on 100k+ cat pictures

Lightning AIPythonPyTorchWanDBGPU nodesNextJSCloudflare
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GitHubDemo

App

OneShare

Private realtime chat with yourself for sending files between your devices

ReactTypeScriptConvexElectronCapacitorAndroidiOS
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GitHub

AI-Agent

Reservation agent

An agent that can make reservations via a phone call

TypeScriptPythonAI-SDKDocker
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GitHub

AI-Agent

Michal bot

OpenClaw like telegram bot that manages my life

AI-SDKTypeScriptLLM tools
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GitHub

Mobile app

PofelApp

Events planner and organizer for friends. Hybrid of Discord and Facebook events

FlutterAndroidiOSFirebase
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GitHubDemo

Web app

Study Buddy

Agentic pipeline for processing lecture recordings into searchable study materials

NextJSTypeScriptElysiaJSAI-SDKPostgreSQL
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Apps

Mobile apps

Apps I built and shipped, with articles about how they were made.

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  1. Mobile appandroidioswebConcert thingCross platform app for backing up and auto labeling of videos from concerts, shows and festivals.

Writing

Articles and thoughts

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  1. 01articleHello worldYello!