Node.js, production reliability, and DevEx
Fully remote since 2016
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2026-03-30
Coding with agents definitely gives you more power. With a couple of sentences in natural language you can create something that would take weeks. Yet I feel there is a fundamental flaw in this process -- you need to wait too long for a result. Agents give you superpower but destroy flow state.
2026-03-17
AI has made software feel weightless. You can ask an agent to build an application, modify it, or rewrite it entirely in minutes. It feels disposable. But that illusion disappears the moment the system gains gravity.
2025-12-29
One of my colleagues recently said about data we had in the database: I cannot imagine the code that would produce such data. And that's correct. We don't have that code right now. We used to have it in the past.
2025-12-16
This article is part joke, part serious observation. It started as a prompt to ChatGPT to provide me with a short blog article titled: "Don't be a human / AI interface" targeted at developers who don't verify the code generated by AI.
2021
A practical and pretty extensive cheat sheet that explains Hyperledger Fabric from first principles: network topology, transaction flow, data consistency, smart contract execution, tradeoffs and more.
2019 - 2021
A collection of articles on software development practices, functional programming, and engineering insights. Topics include Scala monad transformers, test fixtures, data validation techniques lessons learned from long-term projects, and various topics related with Hyperledger Fabric.
2014 - 2018
A personal blog in Polish covering a wide range of technical topics. Posts include React.js and React Native development, offline-first applications with PouchDB and CouchDB, big data technologies (Apache Spark, Kafka, Tez), CI/CD practices with Travis and GitLab, testing with Jest, and various tutorials on modern web development. The blog documents the journey of building applications, exploring new technologies, and sharing practical insights from hands-on experience.
Creator of a scripting DSL, runtime, and VSCode extension for composing AI agent workflows. Designed to make multi-step LLM pipelines reproducible and automatable.
Co-creator, lead and maintainer of a developer-velocity tool to run Hyperledger Fabric networks for development and CI, later accepted into Hyperledger Labs, and supported by Linux Foundation Decentralized Trust (LFDT).
Mentor for LFDT since 2022.
Creator, lead and maintainer of an open-source Node.js framework and tooling ecosystem for building Node.js applications on GalaChain. Used in production and audited by top tier security companies.
Other Open Source projects include Hyperledger Fabric REST API server, RxJS block streaming, utility scripts and more.