Nik McFly
ENRUKZISV
FIELD NOTES

What I learned by building.

Longer notes about products, mistakes, useful tools, and what worked in the real world.

START HERE

Three good places to begin

01

Every Streaming Calculator on the Internet Is Wrong. So I Built One.

Flat-rate streaming calculators are a lie. After nine months of real payout data, I built howmuchperstream.com — a tool that accounts for audience composition, payout timing, and reverse goal planning.

02

Claude managed, Codex coded: two AIs migrated my production site while I answered six questions

A React SPA with a broken SEO layer became a self-hosted Next.js site in 36 hours, with Claude leading and Codex writing all 7,803 lines of code.

03

My Cofounder Is My Girlfriend. We Share One Obsidian Vault.

How we share one Obsidian vault for an AI music label, two creative side practices, and a relationship — with self-hosted LiveSync on a cheap VPS, one Claude account between us, and a 6-zone folder structure that does the work boundaries used to.

ALL NOTES

I Built a Potential $500K AI-Music Catalog. The Prompt Was the Easy Part.

More than 100 releases and 20 million streams later, the biggest lesson is simple: generating a song is not the same as building a music business.

#ai#music#suno#catalog#distribution#royalties#business

Language Is a Gadget

Why I made an Interslavic version of this site — and what changes when we treat language as a technology for mutual understanding.

#language#Interslavic#internet#culture

Your AI Has No Master

Most AI deployments assembled the horse, the carriage, and the driver. They forgot the master. Why a harness without an owner is the same disease that's eating your brain — just viewed from the other side.

#ai#claude#philosophy#skills#harness

I Write Books with AI. Here's How I Make Sure I Own Them.

AI-generated text can't be copyrighted in the U.S. AI-assisted text can. I built a system that keeps me on the right side of that line.

#ai#copyright#self-publishing#legal

I Built a Claude Skill That Turns Markdown Into Amazon KDP Books

One command. Markdown in, EPUB + print-ready PDF out. I open-sourced the skill that published my book on Amazon.

#ai#claude#open-source#self-publishing#kindle

A Chinese Student Got $4M for an AI That Simulates Entire Populations. It Required Cloud APIs. I Made It Run Locally.

I forked MiroFish, replaced Zep Cloud with local Neo4j, translated the entire UI to English, and made a multi-agent population simulation engine run fully offline.

#ai#open-source#mirofish#simulation#agents

Vibe-Designing with Variant: 24 Mockups, Zero Design Skills, One Winner.

How I used AI to generate 24 dashboard mockups, had another AI critique them all, and built a production design direction in under an hour.

#ai#design#variant#vibe-coding

I Vibe-Coded My Company

How I replaced a Google Sheet with a full finance system — dashboard, Telegram bot, AI analyst — in a weekend. No code knowledge required.

#ai#finance#vibe-coding#no-code

I Filed a Patent Without a Lawyer. Here's What Worked.

How I replaced a $15k patent attorney with a swarm of AI agents that tried to destroy my own idea — and shipped the tool as open source.

#ai#patent#open-source#vibepatent

SEO Is Dead. Here's What Replaced It.

The click economy is over. The answer economy is here. A guide to making AI recommend you.

#ai#marketing#aio