Ivan Kalagin, also known as ivklgn

I explore how people and AI can think and build together — then turn those ideas into products.

Product builder · Founder of Archcore

Ivan Kalagin speaking at a meetup

What I work on

Main project

Archcore preview: Spec-Driven Development and Context Engineering

Archcore

Archcore keeps a project’s decisions, specs and rules in Git, so people and AI agents can carry knowledge from one task to the next.

Open source

I’m an open source enthusiast and solo builder. My experiments and Archcore’s project code live on GitHub.

Principles

Writes

Ideas in progress.

I write about what I’m building and the questions I’m still exploring.

Let’s talk about what you’re building.

Have a product idea or a problem where AI might help? Tell me about it.

ivklgn@proton.me