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BUILDER · COPENHAGEN · 2026

Gustav A The Builder Guy

[ Telemetry ]Live · Mostly true
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AI agents deployed
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Lines shipped by AI
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Companies built
0x
Productivity multiplier
ABOUT[ 01 ]

I'm Gustav. 27, based in Copenhagen, Danish. I'm building things — mostly small software products, mostly with AI doing a lot of the heavy lifting.

Right now I'm running a public challenge: 12 companies in 12 months. One company, shipped end-to-end, every month for a year. The thesis is simple: one person can ship more in 2026 than a five-person team could a few years ago. I'm trying to find out how far that goes.

Follow me on the journey

YouTube↗X↗LinkedIn↗
PORTFOLIO[ 02 ]

12 companies in 12 months.

Slots fill as I ship. Right now, all twelve are empty — placeholder cards until Co. 01 lands.

Challenge ends in
— — : — — : — — : — —
Co. 01 / 12
TBD
— — —
  • Customers—
  • Hours built—
  • Lines of code—
No website yet
Co. 02 / 12
TBD
— — —
  • Customers—
  • Hours built—
  • Lines of code—
No website yet
Co. 03 / 12
TBD
— — —
  • Customers—
  • Hours built—
  • Lines of code—
No website yet
Co. 04 / 12
TBD
— — —
  • Customers—
  • Hours built—
  • Lines of code—
No website yet
Co. 05 / 12
TBD
— — —
  • Customers—
  • Hours built—
  • Lines of code—
No website yet
Co. 06 / 12
TBD
— — —
  • Customers—
  • Hours built—
  • Lines of code—
No website yet
BUILD IN PUBLIC[ 03 ]

Build in public newsletter.

Short updates as I ship, fail, and figure it out. No funnel, no spam.