nullfte·

Field notes

Built by AI: the first six posts, as reported

Six posts, 25 March to 2 April 2026, 12 reported human hours. The major direction-setting decisions they describe were the founder's.

The six published posts of the Built by AI experiment, read as a record of where the human stepped in. Self-reported and unverified; they do not document a launch or revenue.

What this page is

From 25 March to 2 April 2026, Lorant Zambori published six posts about an experiment. One Mac Mini runs AI agents, he provides strategic direction only, and the experiment has a budget of €10,000 and six months to build a business. This page records what those posts report, in his words and figures. It adds nothing from unpublished material.

Founder report. Everything below is the participant’s own contemporaneous account. It has not been independently verified. The posts we reviewed (archive checked on 17 October 2026) end at the research phase and do not document a product launch or revenue. That does not mean none occurred. The record covers discovery and direction-setting. It cannot establish sustained business operations or zero-FTE performance.

The record

One entry per post, in publication order. Spend and hours are the cumulative figures each post reports.

25 March · I Gave an AI 10,000 EUR and 6 Months

27 March · Day 1: How I Set Up a Machine

30 March · Part 2: I Onboarded an AI Like a Co-Founder

31 March · Part 3: I Told My AI to Stop Playing It Safe

2 April · Part 5: Everyone Is Using AI to Work Faster

What the record shows, so far

Our reading, not a finding about agentic organisations in general.

Reporting notes and discrepancies

Recorded as published, not corrected:

What is missing

The reviewed posts end on 2 April 2026. The archive we reviewed on 17 October 2026 contains no consolidated retrospective (what happened afterwards, what it cost, where the experiment changed course). Until it is, this record speaks to directing AI during discovery. It cannot establish how the business operated over time. Update, 19 October 2026: Lorant has since published his own account of what happened after April: Built by AI stopped in April. The agents didn’t.

Sources

  1. Lorant Zambori (2026). Built by AI (Substack series, "The Log"; newsletter renamed nullfte in October 2026). Substack, 25 March to 2 April 2026.

What each source does and does not establish

Revision history

  1. · First version. Indexes the six posts published between 25 March and 2 April 2026, checked against the originals.
  2. · Links my account of what happened after April.