Toggle theme
Jovan ZatezaloGo-to-Market Engineer

Field notes

What I learn building revenue systems: attribution that survives contact with reality, funnel instrumentation, growth automation, and the occasional detour into whatever I'm taking apart this month.

$ cat shopify-ad-tracking-before-scaling.md

shopify_

ShopifyMeta AdsTrackingGA4Attribution

Fix your Shopify ad tracking before you scale: 3.9x tracked ROAS at Passionista

Passionista scaled Meta ads only after every order could be traced back to an ad. Here's the tracking setup, what the honest numbers showed, and the fix that didn't work.

Nov 9, 2026
7 min read

$ cat ai-operating-system-claude-code-azure-vm-telegram.md

claude code_

Claude CodeAI AgentsAutomationAzure

My AI Operating System: Claude Code, a Git Repo, an Azure VM and a Telegram Bot

How I run three businesses next to a full-time engineering job with one repo, Claude Code and a server that never sleeps.

Oct 24, 2026
5 min read

$ cat private-voice-dictation-ai-rewrite-macos.md

macos_

macOSWhisperOllamaAutomation

Build a Private Voice-to-Text & AI Rewrite Toolkit on macOS

A fully local, private text-and-voice toolkit for a Mac - global-hotkey dictation with Whisper and one-keystroke AI rewriting with a local LLM. No subscriptions, no API keys, nothing leaves your machine.

Jul 14, 2026
14 min read

$ cat building-fast-seo-friendly-blogs.md

next.js_

Next.jsMarkdownSEO

Building Fast, SEO-Friendly Blogs with Next.js and Markdown

How I moved my blog from a database to plain Markdown files - keeping full SEO, static rendering, and VS Code-quality code highlighting.

Jun 28, 2026
2 min read

$ cat practical-guide-to-web-performance.md

performance_

PerformanceWeb

A Practical Guide to Web Performance

The handful of techniques that move the needle on Core Web Vitals - and the ones that are just noise.

May 14, 2026
1 min read