blognotes + writeups

Notes from building production AI products and the engineering behind this site

Petro Pavlov on building production AI products end-to-end — RAG, LLM orchestration, self-hosted analytics, and the engineering behind petropavlov.dev.

2026-05-16~9 min read
A/B testing a portfolio that gets 20 visits a day
I built feature flags + significance testing into my portfolio. Then I did the math and realised I shouldn't run it yet. Here's the framework anyway — and the spreadsheet that tells you when you actually should.
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Notes from building production AI products and the engineering behind this site

A/B testing a portfolio that gets 20 visits a day