
SimulSpeak
Speak, and hear yourself translated in real time.
One senior engineer, from a Telegram bot to a full operating system - AI, web, mobile, blockchain, backend. If it's software, I build it, end to end.
Free 30-minute intro call. No obligation, no sales pressure.






Don't take my word for it. Believe them.
I don't just build for clients - I ship my own products too. These are live, in the market, and built end to end by me. Proof I can take an idea all the way, not just talk about it.

Hungary's #1 software for car dealers.
Deal radar across 8+ EU sources · margin pricing · dealer CRM. Monthly subscription for dealerships.

Talk to anyone, in any language.
Live translated calls in 24 languages, and a voice agent that sounds like you. Subscription + minutes.

Hungarian legal AI, with sourced answers.
Legal answers with the exact statute cited, contract and NDA drafts. Plans for individuals and firms.

Your customer support bot, on every channel.
One support AI on every channel - chat, email, phone - self-hosted on your own servers. License + setup.

Casual work, one click away.
Vetted companies and workers, one-click applications. Platform fee per shift.

The best vacations, in one place.
Curated villas, hotels, tours and travel extras in one place. A curated marketplace.
Not videos, not screenshots. These are our own products, running here in your browser. Talk to one, ask it, make it do the maths — every answer is real.

Speak, and hear yourself translated in real time.

Ask a legal question, or have it draft the document itself.

Load a deal and see what you'd actually clear on it.

Not a mockup - the real support agent, answering from its knowledge base.

Plan a shift and see what it costs before you post it.

Set a budget and see which stays fit, ranked by price per night.
Business owners, CEOs, entrepreneurs and CTOs, from all kinds of industries.
We had a template shop that looked like everyone else's. Dezső rebuilt it from scratch. Fast, clean, looks great on a phone. We sold more from the first week, and the work landed on time, no surprises…

We had an AI that looked great in a demo but kept breaking with real users. Dezső took it through to a real product, with checks at every step so nothing odd reaches a customer. Nine weeks later, live…

We had a health-AI product idea and nobody believed it could ship at Berlin pace. Seven weeks later he delivered the full UI plus the AI pattern-recognition layer · the smartwatch readings now turn in…
Our open-ended questions used to be the part of the assessment we'd skim, because reading 60 answers for a pattern was a whole evening. The team built a system that does the reading for us and tells u…
Every fitness app we'd seen was either flat illustrations or a single-camera video that breaks on the train. The team built one where the body is a 3D model you can rotate on the screen, and the same…
We came in with an email + spreadsheet workflow and a hundred edge cases. The studio narrowed everything down to four simple steps you can see on one screen. Our creators stopped asking 'where's my br…
We needed phishing tests that actually fool people, plus the NIS2 paperwork that auditors love. PhisGuard does both, the AI-tailored emails actually trick the team, they learn from getting caught, and…
We wanted to be the news site that doesn't pretend everyone is being honest. They built a system that scores every article, how factual, how opinionated, how political, and shows the comparison side b…
Property transfers between countries used to take six weeks of paperwork. The studio built us a marketplace where the whole sale happens in one transaction, and the buyer gets a digital certificate on…
Most browser poker products feel like a spreadsheet with cards on it. This one doesn't, the animations are right, the chips slide naturally, and players see the same thing whether they're on a phone o…
We had a template shop that looked like everyone else's. Dezső rebuilt it from scratch. Fast, clean, looks great on a phone. We sold more from the first week, and the work landed on time, no surprises…

We had an AI that looked great in a demo but kept breaking with real users. Dezső took it through to a real product, with checks at every step so nothing odd reaches a customer. Nine weeks later, live…

We had a health-AI product idea and nobody believed it could ship at Berlin pace. Seven weeks later he delivered the full UI plus the AI pattern-recognition layer · the smartwatch readings now turn in…
Our open-ended questions used to be the part of the assessment we'd skim, because reading 60 answers for a pattern was a whole evening. The team built a system that does the reading for us and tells u…
Every fitness app we'd seen was either flat illustrations or a single-camera video that breaks on the train. The team built one where the body is a 3D model you can rotate on the screen, and the same…
We came in with an email + spreadsheet workflow and a hundred edge cases. The studio narrowed everything down to four simple steps you can see on one screen. Our creators stopped asking 'where's my br…
We needed phishing tests that actually fool people, plus the NIS2 paperwork that auditors love. PhisGuard does both, the AI-tailored emails actually trick the team, they learn from getting caught, and…
We wanted to be the news site that doesn't pretend everyone is being honest. They built a system that scores every article, how factual, how opinionated, how political, and shows the comparison side b…
Property transfers between countries used to take six weeks of paperwork. The studio built us a marketplace where the whole sale happens in one transaction, and the buyer gets a digital certificate on…
Most browser poker products feel like a spreadsheet with cards on it. This one doesn't, the animations are right, the chips slide naturally, and players see the same thing whether they're on a phone o…
We had a template shop that looked like everyone else's. Dezső rebuilt it from scratch. Fast, clean, looks great on a phone. We sold more from the first week, and the work landed on time, no surprises…

We had an AI that looked great in a demo but kept breaking with real users. Dezső took it through to a real product, with checks at every step so nothing odd reaches a customer. Nine weeks later, live…

We had a health-AI product idea and nobody believed it could ship at Berlin pace. Seven weeks later he delivered the full UI plus the AI pattern-recognition layer · the smartwatch readings now turn in…
Our open-ended questions used to be the part of the assessment we'd skim, because reading 60 answers for a pattern was a whole evening. The team built a system that does the reading for us and tells u…
Every fitness app we'd seen was either flat illustrations or a single-camera video that breaks on the train. The team built one where the body is a 3D model you can rotate on the screen, and the same…
We came in with an email + spreadsheet workflow and a hundred edge cases. The studio narrowed everything down to four simple steps you can see on one screen. Our creators stopped asking 'where's my br…
We needed phishing tests that actually fool people, plus the NIS2 paperwork that auditors love. PhisGuard does both, the AI-tailored emails actually trick the team, they learn from getting caught, and…
We wanted to be the news site that doesn't pretend everyone is being honest. They built a system that scores every article, how factual, how opinionated, how political, and shows the comparison side b…
Property transfers between countries used to take six weeks of paperwork. The studio built us a marketplace where the whole sale happens in one transaction, and the buyer gets a digital certificate on…
Most browser poker products feel like a spreadsheet with cards on it. This one doesn't, the animations are right, the chips slide naturally, and players see the same thing whether they're on a phone o…
Order tracking, client approvals, invoicing. The things that ate my evenings. Dezső built one internal tool in a month and now they just happen. Nothing fancy on the surface, but I got my evenings bac…

I wanted something that didn't look like a typical 'musician's homepage'. The site loads instantly, works on a phone, and the streaming numbers actually went up after we shared it. Two weeks from kick…

I found Dezső on LinkedIn, sent over a short brief, and what landed in my inbox was straight off the bat exactly the site I had pictured. We made two very minor changes and shipped it. No long calls,…
Our smartwatches were collecting data nobody actually read. The studio built a system that connects the dots, sleep + heart rate + activity together, and tells you in plain words what changed and why…
We were managing the channel by hand · sending invite links one by one, kicking expired members from a spreadsheet, and posting tips as plain text nobody shared. The studio built a system where the we…
We had a strict GDPR rule and 6 weeks to ship. The studio built a chatbot that runs entirely on our own server, we just upload a folder of documents, and it answers like a colleague who's read all of…
Our AI agents were already touching live systems, and we had no good answer for the auditor. The studio added a layer that checks every action before it happens, like a colleague asking 'are you sure?…
We'd been wiped out repeatedly by single-bot strategies that freaked out on every news cycle. The studio built a system where four AIs each look at the trade from a different angle and only act if the…
We wanted something completely different from anything in our market, no boring page-after-page click-through. The studio built a site where you don't click at all: you just scroll, and a single chara…
We'd already failed twice with self-improvement apps that died in App Store review. The studio shipped this one through review on the first try, and the streak feature actually keeps people coming bac…
Order tracking, client approvals, invoicing. The things that ate my evenings. Dezső built one internal tool in a month and now they just happen. Nothing fancy on the surface, but I got my evenings bac…

I wanted something that didn't look like a typical 'musician's homepage'. The site loads instantly, works on a phone, and the streaming numbers actually went up after we shared it. Two weeks from kick…

I found Dezső on LinkedIn, sent over a short brief, and what landed in my inbox was straight off the bat exactly the site I had pictured. We made two very minor changes and shipped it. No long calls,…
Our smartwatches were collecting data nobody actually read. The studio built a system that connects the dots, sleep + heart rate + activity together, and tells you in plain words what changed and why…
We were managing the channel by hand · sending invite links one by one, kicking expired members from a spreadsheet, and posting tips as plain text nobody shared. The studio built a system where the we…
We had a strict GDPR rule and 6 weeks to ship. The studio built a chatbot that runs entirely on our own server, we just upload a folder of documents, and it answers like a colleague who's read all of…
Our AI agents were already touching live systems, and we had no good answer for the auditor. The studio added a layer that checks every action before it happens, like a colleague asking 'are you sure?…
We'd been wiped out repeatedly by single-bot strategies that freaked out on every news cycle. The studio built a system where four AIs each look at the trade from a different angle and only act if the…
We wanted something completely different from anything in our market, no boring page-after-page click-through. The studio built a site where you don't click at all: you just scroll, and a single chara…
We'd already failed twice with self-improvement apps that died in App Store review. The studio shipped this one through review on the first try, and the streak feature actually keeps people coming bac…
Order tracking, client approvals, invoicing. The things that ate my evenings. Dezső built one internal tool in a month and now they just happen. Nothing fancy on the surface, but I got my evenings bac…

I wanted something that didn't look like a typical 'musician's homepage'. The site loads instantly, works on a phone, and the streaming numbers actually went up after we shared it. Two weeks from kick…

I found Dezső on LinkedIn, sent over a short brief, and what landed in my inbox was straight off the bat exactly the site I had pictured. We made two very minor changes and shipped it. No long calls,…
Our smartwatches were collecting data nobody actually read. The studio built a system that connects the dots, sleep + heart rate + activity together, and tells you in plain words what changed and why…
We were managing the channel by hand · sending invite links one by one, kicking expired members from a spreadsheet, and posting tips as plain text nobody shared. The studio built a system where the we…
We had a strict GDPR rule and 6 weeks to ship. The studio built a chatbot that runs entirely on our own server, we just upload a folder of documents, and it answers like a colleague who's read all of…
Our AI agents were already touching live systems, and we had no good answer for the auditor. The studio added a layer that checks every action before it happens, like a colleague asking 'are you sure?…
We'd been wiped out repeatedly by single-bot strategies that freaked out on every news cycle. The studio built a system where four AIs each look at the trade from a different angle and only act if the…
We wanted something completely different from anything in our market, no boring page-after-page click-through. The studio built a site where you don't click at all: you just scroll, and a single chara…
We'd already failed twice with self-improvement apps that died in App Store review. The studio shipped this one through review on the first try, and the streak feature actually keeps people coming bac…
Raw footage goes in, ready-to-post clips come out. The system catches mistakes before anything goes public. I'm not editing less carefully, I'm just not doing the boring repeat work anymore.

I found Dezső on LinkedIn, sent over a short brief, and what landed in my inbox was straight off the bat exactly the site I had pictured. We made two very minor changes and shipped it. No long calls,…

We were checking five auction sites with a spreadsheet at midnight and still missing the good lots. The studio built a system that watches the auctions for us, compares each car to the actual Hungaria…
We honestly didn't think this was possible. Someone types in a property description, and a moment later there's a 3D model of the apartment that you can walk through in first person, like a video game…
We had one week to launch a credible-looking AI-security brand. The studio shipped the website, the courses and the contact flow, exactly how we'd described the brand. The first phone calls came in wi…
Redesigned the GeekCorner webshop from scratch · custom design, animated, mobile-first. Measurable conversion lift within the first week. Clean communication, delivered on time.
Our project managers used to wait days for an engineer to build them an automation. The studio built a tool where the manager just describes what they want in plain language, and two minutes later a w…
We were copying odds across four browser tabs and getting parlays wrong in Excel, embarrassing. BetEdge puts twenty matches on one screen and shows the actual math behind each prediction, including wh…
We'd been having forged-ticket arguments at the door of every event for years. The studio built a system where each ticket is its own digital token on the blockchain, the scanner just says 'used', 'fa…
We had a 'firewall closes everything, we're fine' attitude and a print server we'd forgotten existed. The proof-of-concept took four seconds, and showed our security team that someone from outside cou…
Raw footage goes in, ready-to-post clips come out. The system catches mistakes before anything goes public. I'm not editing less carefully, I'm just not doing the boring repeat work anymore.

I found Dezső on LinkedIn, sent over a short brief, and what landed in my inbox was straight off the bat exactly the site I had pictured. We made two very minor changes and shipped it. No long calls,…

We were checking five auction sites with a spreadsheet at midnight and still missing the good lots. The studio built a system that watches the auctions for us, compares each car to the actual Hungaria…
We honestly didn't think this was possible. Someone types in a property description, and a moment later there's a 3D model of the apartment that you can walk through in first person, like a video game…
We had one week to launch a credible-looking AI-security brand. The studio shipped the website, the courses and the contact flow, exactly how we'd described the brand. The first phone calls came in wi…
Redesigned the GeekCorner webshop from scratch · custom design, animated, mobile-first. Measurable conversion lift within the first week. Clean communication, delivered on time.
Our project managers used to wait days for an engineer to build them an automation. The studio built a tool where the manager just describes what they want in plain language, and two minutes later a w…
We were copying odds across four browser tabs and getting parlays wrong in Excel, embarrassing. BetEdge puts twenty matches on one screen and shows the actual math behind each prediction, including wh…
We'd been having forged-ticket arguments at the door of every event for years. The studio built a system where each ticket is its own digital token on the blockchain, the scanner just says 'used', 'fa…
We had a 'firewall closes everything, we're fine' attitude and a print server we'd forgotten existed. The proof-of-concept took four seconds, and showed our security team that someone from outside cou…
Raw footage goes in, ready-to-post clips come out. The system catches mistakes before anything goes public. I'm not editing less carefully, I'm just not doing the boring repeat work anymore.

I found Dezső on LinkedIn, sent over a short brief, and what landed in my inbox was straight off the bat exactly the site I had pictured. We made two very minor changes and shipped it. No long calls,…

We were checking five auction sites with a spreadsheet at midnight and still missing the good lots. The studio built a system that watches the auctions for us, compares each car to the actual Hungaria…
We honestly didn't think this was possible. Someone types in a property description, and a moment later there's a 3D model of the apartment that you can walk through in first person, like a video game…
We had one week to launch a credible-looking AI-security brand. The studio shipped the website, the courses and the contact flow, exactly how we'd described the brand. The first phone calls came in wi…
Redesigned the GeekCorner webshop from scratch · custom design, animated, mobile-first. Measurable conversion lift within the first week. Clean communication, delivered on time.
Our project managers used to wait days for an engineer to build them an automation. The studio built a tool where the manager just describes what they want in plain language, and two minutes later a w…
We were copying odds across four browser tabs and getting parlays wrong in Excel, embarrassing. BetEdge puts twenty matches on one screen and shows the actual math behind each prediction, including wh…
We'd been having forged-ticket arguments at the door of every event for years. The studio built a system where each ticket is its own digital token on the blockchain, the scanner just says 'used', 'fa…
We had a 'firewall closes everything, we're fine' attitude and a print server we'd forgotten existed. The proof-of-concept took four seconds, and showed our security team that someone from outside cou…
★ 5.0 · 7 verified clients · HU · NL · DE · ES · MX
Three openly-licensed papers, two co-authored. I don't just use AI, I research it.
Accuracy, speed and cost in production RAG
A practitioner report on tuning a production RAG system for accuracy, speed and memory at once. The biggest wins were structural, not compute-heavy: one-bit vector quantization shrank the index about 32x and removed the need for a vector database, and an int8 encoder made the model about 4x smaller, with cited answers throughout.
Read the paper →Research paperZenodo · CC BY 4.0Self-edits and distillation in Self-Adapting LLMs (SEAL)
Co-authored research on Self-Adapting Language Models (SEAL), where a model writes its own training data and folds it into its own weights via LoRA. We show a single well-chosen self-edit matches SEAL's union-of-five using a fifth of the data, and that KL-distillation from a frozen teacher cuts prior-knowledge loss roughly 4x at equal injection. With Joran van Beek of Noaber AI.
Read the paper →Research paperZenodo · CC BY 4.0Safety & sovereignty in the OpenClaw agent architecture
Co-authored research on the "Agentic Paradox" — how autonomous agents inherit outdated trust assumptions once they read private data, run shell commands and keep memory — and what hardens them against prompt injection. With Joran van Beek of Noaber AI.
Read the paper →Every build is public and live - don't believe us, see it for yourself. Click any project for the full story.
A misconception-pattern radar for teachers · open-ended student answers in, the reasoning errors dominating a cohort out.
A misconception-pattern radar for teachers · open-ended student answers in, the reasoning errors dominating a cohort out.
A misconception-pattern radar for teachers · open-ended student answers in, the reasoning errors dominating a cohort out.
Hungarian premium sports-tips subscription that gates a private Telegram channel · Stripe checkout, auto-invite, branded share cards.
Hungarian premium sports-tips subscription that gates a private Telegram channel · Stripe checkout, auto-invite, branded share cards.
Hungarian premium sports-tips subscription that gates a private Telegram channel · Stripe checkout, auto-invite, branded share cards.
3D-driven functional-training app - web + mobile share one bone-rig engine that animates every exercise.
3D-driven functional-training app - web + mobile share one bone-rig engine that animates every exercise.
Vilya Protection · assassination-prevention software platform for public figures and large events. The demo shows the full operational dashboard.
Vilya Protection · assassination-prevention software platform for public figures and large events. The demo shows the full operational dashboard.
Vilya Protection · assassination-prevention software platform for public figures and large events. The demo shows the full operational dashboard.
CUSTOM · WEB · AIEU→HU car-import arbitrage platform - turns 'you can buy this car abroad and resell it at home' into a live, scored feed.
EU→HU car-import arbitrage platform - turns 'you can buy this car abroad and resell it at home' into a live, scored feed.
EU→HU car-import arbitrage platform - turns 'you can buy this car abroad and resell it at home' into a live, scored feed.
AI · WEB · MOBILEAI reads your wearable data, spots changes, recommends treatment and lifestyle tweaks.
AI reads your wearable data, spots changes, recommends treatment and lifestyle tweaks.
AI reads your wearable data, spots changes, recommends treatment and lifestyle tweaks.
AI · WEBAI-generated 3D properties and interiors, walkable in FPV · with a manual editor and drone view.
AI-generated 3D properties and interiors, walkable in FPV · with a manual editor and drone view.
AI-generated 3D properties and interiors, walkable in FPV · with a manual editor and drone view.
CUSTOM · WEB · AIHungary's #1 car-dealer platform · EU import monitoring, an AI buyer advisor, CRM and fleet management on one surface.
Hungary's #1 car-dealer platform · EU import monitoring, an AI buyer advisor, CRM and fleet management on one surface.
Hungary's #1 car-dealer platform · EU import monitoring, an AI buyer advisor, CRM and fleet management on one surface.
AI · CUSTOM · WEBReal-time translated calls in 24 languages · they hear their language, in your voice.
Real-time translated calls in 24 languages · they hear their language, in your voice.
Real-time translated calls in 24 languages · they hear their language, in your voice.
AI · CUSTOM · WEBHungarian legal AI with sourced answers · cites the exact statute, drafts contracts, and refuses to invent law.
Hungarian legal AI with sourced answers · cites the exact statute, drafts contracts, and refuses to invent law.
CUSTOM · WEBTwo-sided staffing platform for casual work · vetted companies, real reviews, one-click applications.
Two-sided staffing platform for casual work · vetted companies, real reviews, one-click applications.
Two-sided staffing platform for casual work · vetted companies, real reviews, one-click applications.
WEB · CUSTOMCurated vacation marketplace · villas, hotels and tours with map search, plus car hire, insurance and eSIM in one place.
Curated vacation marketplace · villas, hotels and tours with map search, plus car hire, insurance and eSIM in one place.
Curated vacation marketplace · villas, hotels and tours with map search, plus car hire, insurance and eSIM in one place.
AI · SECURITY · WEBAn AI firm's website · home of Hungary's first dedicated AI-security practice.
An AI firm's website · home of Hungary's first dedicated AI-security practice.
An AI firm's website · home of Hungary's first dedicated AI-security practice.
WEBAn influencer and creator management platform with a quiet, clean design.
An influencer and creator management platform with a quiet, clean design.
An influencer and creator management platform with a quiet, clean design.
AI · WEB · CUSTOMOne-click SaaS to build a company's own AI chatbot · upload a folder, point at a site feed, everything stays on your server.
One-click SaaS to build a company's own AI chatbot · upload a folder, point at a site feed, everything stays on your server.
One-click SaaS to build a company's own AI chatbot · upload a folder, point at a site feed, everything stays on your server.
WEBHungary's first custom-designed Mystery Box + geek webshop · conversion rate jumped.
Hungary's first custom-designed Mystery Box + geek webshop · conversion rate jumped.
Hungary's first custom-designed Mystery Box + geek webshop · conversion rate jumped.
SECURITY · AI · CUSTOMAI-powered phishing simulation campaigns for companies · realistic scenarios, live tracking, automated awareness training.
AI-powered phishing simulation campaigns for companies · realistic scenarios, live tracking, automated awareness training.
AI-powered phishing simulation campaigns for companies · realistic scenarios, live tracking, automated awareness training.
AI · SECURITY · CUSTOMA security layer between an AI agent and its tools · checks every tool call at the intent level, blocks or approves, logs.
A security layer between an AI agent and its tools · checks every tool call at the intent level, blocks or approves, logs.
A security layer between an AI agent and its tools · checks every tool call at the intent level, blocks or approves, logs.
AI · WEB · CUSTOMDescribe the workflow in plain language, get a ready-to-import n8n JSON · all nodes wired, credentials slotted, test data included.
Describe the workflow in plain language, get a ready-to-import n8n JSON · all nodes wired, credentials slotted, test data included.
Describe the workflow in plain language, get a ready-to-import n8n JSON · all nodes wired, credentials slotted, test data included.
AI · WEBThe only news aggregator that verifies the source, summarises it, and scores how biased the piece is.
The only news aggregator that verifies the source, summarises it, and scores how biased the piece is.
The only news aggregator that verifies the source, summarises it, and scores how biased the piece is.
AI · WEB3Multiple AI agents trade the top 50 crypto tokens together · data, sentiment, news in one.
Multiple AI agents trade the top 50 crypto tokens together · data, sentiment, news in one.
Multiple AI agents trade the top 50 crypto tokens together · data, sentiment, news in one.
AI · WEBData-driven bet analyser · parlay suggestions, best odds, probability math, not guesswork.
Data-driven bet analyser · parlay suggestions, best odds, probability math, not guesswork.
WEB3 · WEBProperty marketplace on Ethereum · every sale carries an NFT ownership certificate.
Property marketplace on Ethereum · every sale carries an NFT ownership certificate.
Property marketplace on Ethereum · every sale carries an NFT ownership certificate.
WEBA creative microsite that reads as one character's journey · no traditional page transitions.
A creative microsite that reads as one character's journey · no traditional page transitions.
A creative microsite that reads as one character's journey · no traditional page transitions.
WEB3 · WEBEvent platform on Solana · non-forgeable tickets, QR-code check-in.
Event platform on Solana · non-forgeable tickets, QR-code check-in.
Event platform on Solana · non-forgeable tickets, QR-code check-in.
WEB · AIA browser-based multiplayer poker room · animated cards, emotes, real-time table feel.
A browser-based multiplayer poker room · animated cards, emotes, real-time table feel.
A browser-based multiplayer poker room · animated cards, emotes, real-time table feel.
MOBILE · AISelf-improvement mobile app on iPhone and Android · goals, daily challenges, TikTok-style short content.
Self-improvement mobile app on iPhone and Android · goals, daily challenges, TikTok-style short content.
SECURITYOne HTTP request, full SYSTEM shell · the PaperCut CVE-2023-27350 auth bypass, live from recon to reverse shell.
One HTTP request, full SYSTEM shell · the PaperCut CVE-2023-27350 auth bypass, live from recon to reverse shell.
One HTTP request, full SYSTEM shell · the PaperCut CVE-2023-27350 auth bypass, live from recon to reverse shell.
Not promises, but a track record: co-authored research, open-source code, lessons from projects in production, and products you can try right now. Proof that what I build actually ships and holds up.
A practitioner report on tuning a production RAG system for accuracy, speed and memory at once. The biggest wins were structural, not compute-heavy: one-bit vector quantization shrank the index about 32x and removed the need for a vector database, and an int8 encoder made the model about 4x smaller, with cited answers throughout.
Co-authored research on Self-Adapting Language Models (SEAL), where a model writes its own training data and folds it into its own weights via LoRA. We show a single well-chosen self-edit matches SEAL's union-of-five using a fifth of the data, and that KL-distillation from a frozen teacher cuts prior-knowledge loss roughly 4x at equal injection. With Joran van Beek of Noaber AI.
Co-authored research on the "Agentic Paradox" — how autonomous agents inherit outdated trust assumptions once they read private data, run shell commands and keep memory — and what hardens them against prompt injection. With Joran van Beek of Noaber AI.
A hands-on reverse-engineering teardown: what it actually takes to break into locked-down hardware, and why the difference came down to the device, not the skill.
How applied AI turns a vague hunch about student answers into a concrete, actionable signal teachers can trust. The thinking behind ClarixAI.
Not 'worked on.' Shipped. A look at what real delivery velocity looks like across three live products in a single week.
When the vendor app fell short, I built my own. A field note on owning your stack end to end instead of renting someone else's limits.
Field-tested lessons from critical-infrastructure work that most software teams never get to see. Where reliability is not optional.
Open-source decentralized app on Solana: minting, ownership and event flow on-chain. Shipped code, not slideware.
A working blockchain built from first principles: blocks, hashing and proof-of-work mining. The fundamentals, implemented, not just explained.
Security research reproducing a real remote-code-execution vulnerability. The offensive-security depth behind the defensive work I do for clients.
Not concepts — live products with real users. Open any of them and see the kind of software we ship.
Hungary's #1 software for car dealers.
Talk to anyone, in any language.
Hungarian legal AI, with sourced answers.
Your customer support bot, on every channel.
Casual work, one click away.
The best vacations, in one place.
Have a problem in this space? Let's talk through what it would look like for you.
Start a projectHand-built, from-scratch mini-apps: algorithms, data structures, and dev tools. Each one downloads as a single ZIP and runs locally. Free, with a zero-dependency core and real tests.
Make sense of the slashes.
DownloadClean parsing logic and crisp developer UXCron, in plain English.
DownloadCompilersSource to stack.
DownloadUnsupervised MLFind the groups that were always there.
DownloadNetwork analysisWho matters in a network, and why.
DownloadProbabilistic data structuresProbably yes. Definitely no.
DownloadBudapest studio, delivering all over the world. We have shipped work across Europe, the Americas and the Middle East. The map tours every country, or jump to one yourself.
Countries we have shipped in: Hungary, Germany, Netherlands, United Kingdom, France, Italy, Austria, Malta, Spain, United States, Mexico, UAE.
Müller MárkGeekCorner“New shop, more orders in the first week.”
KristófCreator Community“Automated video-editing pipeline. Three ready-to-post clips in the time it took to make one.”
JerzsoJerzso Music“Built a musician website in two weeks. Looks like a label is behind me, streaming numbers up.”I build custom, production-grade software end to end: I scope it, design it, build it and run it myself - AI agents, web and mobile apps, webshops, blockchain, backends and infrastructure, right down to the OS layer. Not templates, not slideware - real systems you own. Every line below is shipped work; open a project and see it run.
Models, chatbots and autonomous agents that do real work.
Smart contracts, tokens and on-chain apps - audited and shipped.
Bots and automations that run the business while you sleep.
Fast, beautiful sites and full web platforms.
Online stores with real checkout, payments and inventory.
APIs, databases and pipelines - the engine behind the app.
iOS & Android from one codebase, app-store ready.
Pentests, exploit research and hardening - down to the OS.
In plain words. No tech jargon, no spec document required. A friendly conversation is enough to start.
I scope it, design it, and build it - you watch real progress from the person writing the code, not slideware and promises.
Working software, shipped and documented. It's yours - code, accounts, the lot. And I stick around if you want me to.
Straight answers to what people ask before starting a project.

When you write, it's me who answers. No sales team, no account managers, no runaround. Tell me what you're trying to build and I'll tell you honestly what it takes.
Dezső Mező · founder & engineer