Blog

Writing

Short notes from building products — written in plain language when I can, with the technical bits when they matter.

Currently: Building Educollab at Tatras Data. After hours: Diet Coke, GTA 5, and a new AI paper.

1 Aug 2026 · 1 min read

DXCursorEngineering

Using Cursor and Codex without lowering the bar

How I use multi-agent Cursor and Codex to move faster on UI and modernization — and the checks I refuse to skip.

12 Jun 2026 · 2 min read

PostgreSQLPerformanceBackend

Cutting chat query CPU from 80% to 15%

A production LMS chat path that was melting the database. What we measured, which indexes actually mattered, and why 'just add Redis' was the wrong first move.

3 Apr 2026 · 1 min read

GenAISpeechProduct

Building a speech evaluation pipeline for an LMS

How we turned spoken student submissions into graded signal inside Educollab — without pretending a single LLM call is a product.

18 Jan 2026 · 1 min read

SaaSLangchainNext.js

Shipping GenAI SaaS from idea to a paid product

Lessons from building RedSerp and Paperbot — Langchain in production, Stripe, serverless, and why the UI is part of the model.