I write to work things out: how a pipeline should be evaluated, why a cloud bill looked the way it did, what a model got wrong and why.
Most of it is short-form and lands in my Telegram channel first. Anything that turns out to be worth more than a few paragraphs ends up here.
Longer pieces go to DOU, the Ukrainian engineering community. The Telegram channel is the faster one — notes, findings and things that broke, usually in Ukrainian.
2026 · DOU · in Ukrainian
A phone showing three bars while half the incoming calls vanish. Debugging the grey zone in a mobile network: why the signal indicator lies, how radio-link asymmetry produces exactly this failure, and the one line of configuration that closed it.
Read on DOU2026 · DOU · in Ukrainian
Five years of building a home on Home Assistant: integrating devices that were never meant to talk to each other, charging an EcoFlow on the cheap night tariff, and the scenarios that keep a flat liveable through blackouts.
Read on DOU2023 · DOU · in Ukrainian
eSvitlo reports whether there is electricity at a specific address. Two ways to run it, written by the person who built it: an AWS Lambda watching a router, and a Raspberry Pi on the local network.
Read on DOUThe longer-form, reviewed version of the same interests lives on the research page: generative AI, decision science and labour-market intelligence.
Research and publications