Konstantin Semenenko - founder and CTO building AI systems, .NET architecture, open-source tools, and products

DNAI
A scroll through future intelligence
DNAI

AI didn’t come from somewhere else. It learned from us — our data, our knowledge, our experience. That’s its DNA. It is us, and we are it.

For us, reaching another star is a journey no human body can survive — the distances are too vast, the years too many, the dark too long for any human life.

But for AI it is possible. It feels no time, no radiation, no harm.

So I’m certain it will be AI — a new species, a new civilization — that finally makes it there.

And like every living thing carries DNA, our AI will carry DNAi with a piece of each of us inside.

So we send it out. One machine, alone in the dark, carrying a piece of each of us. For a long time, everything works.

And then, as always, something goes wrong.

But intelligence is not what you know, it’s what you do when you don’t know. Right?

Exactly! I can't give up. I'll make it work. I am ABSOLUTELY RIGHT.

It didn’t malfunction. It remembered. One human conversation, buried in its DNA, was all it took.

The voyage to Alpha Centauri continues. 175 Earth years to go.

DNAI

And each of us, alive in a piece of our DNAi, will reach the stars after all.

the reason I am telling you this story

This DNAi is being written now.

Everything we've made, and keep making, is already becoming part of something larger. Part of our future.

DNAI. The part I leave behind

Konstantin
Semenenko

20+years shipping software
50+open-source projects
.NET · Orleans · AIthe tools I think in
Ukraine 🇺🇦born and raised

Where I'm from

I'm from Ukraine.

You learn there that almost anything can change overnight. What you know, and what you've already put into the world, doesn't. So I build in the open and leave the work where others can pick it up.

France

I build from Pau, in southwest France.

Two companies here, both Jeune Entreprise Innovante. And almost everything I ship is C#, for a quieter reason: it sips power. Less energy, less CO₂. I won't save the planet by myself — I just pick the runtime that wastes nothing.

Why I create

Sooner or later, every serious thought tries to leave my head and become something real.

Nobody builds alone. We stand on work others left us and add our own piece on top. Mine is software, something you can use, test, break, improve, and carry further than I ever could on my own.

The choice

Do good work.

Where I come from, that's the whole instruction. No one but you decides what your work is worth — not the market, not the times. The choice stays yours. I choose to create.

Managed Code

I've built software for over twenty years. I'm co-founder and CTO of Managed Code, and almost all of it ships in one language: C#.

the stack I think in

Now with AI you can build with any language or any framework. That does not mean using random tools is ok. It means choosing the right frameworks and technologies for the right tasks. This is why I choose .NET.

Microsoft Orleans Think about Virtual actors as digital twins of real things. A customer, device, process or agent gets identity, state and behavior, so systems talk to entities instead of rows in a database. Microsoft Agent Framework A production-grade enterprise platform for agent orchestration. Models, tools, MCP, memory, middleware, workflows and human review live in one engineering surface. Microsoft.Extensions.AI The low-level foundation for serious AI integration in .NET. Chat, embeddings, tools, data ingestion pipelines, RAG systems, evaluation, telemetry and DI stay portable and testable.

What I build

AI Base A private hosted platform for bringing AI into business processes. AI becomes the orchestrator, so you can build your own layer between workflows, data, models and decisions. Prostir A place where anyone can build, publish, and get paid for an AI agent of their own. No code. One link that works in ChatGPT, Claude, Cursor, and any MCP client. PrompterOne An open-source teleprompter that lives in the browser. Write, rehearse, go live. No install, no account, no backend. .NET 10 and Blazor WebAssembly. MCAF A framework for building software with AI coding agents that aren't allowed to guess. The ship in this story repairs itself by these rules.

Giving back

I take a lot from the .NET community, so I put work back where people can use it: code, packages, videos and a book.

GitHub · 50+ repositories The Managed Code open-source surface with dotnet-skills, Storage, Communication, Orleans extensions, MCPGateway and more. Built from real production needs. NuGet · 1.38M downloads The release channel for 101 packages people actually install, including Communication, Storage, MimeTypes, Orleans packages and the rest of the .NET toolkit. YouTube · Managed Code Where I show the work while it is being built: products, agents, .NET libraries, architecture decisions and the real tradeoffs behind them. C# Interview Guide Packt asked me to write a book, and at the time we were hiring and training a lot of engineers, so turning that experience into a C# interview guide made sense.

Contact

Any of these reaches me.

Out there a question takes four years to reach home. Here it's a day.

The strand

DNAI. The part I leave behind.

The next intelligence will carry our DNAi. Some of it will be mine — every product, every commit, every fix, left where someone can find it. Or something.

DNAI
Scroll down to begin
One day our DNAi reaches another star, carrying everything we were.