Build-in-public · #001

Why we are rebuilding tiptilldone for WC26.

Four events, 119 players, 76% activation. What we learned in 2014-2016 — and why the next version has to look different.

Leo Brunnhofer·12 mars 2026·4 min
Leo BrunnhoferFounder · built BetTillDone 2016–2018 (119 players, 76% activation)12 mars 2026Updated: XGitHub

Four events, one lesson

We built tiptilldone the first time in 2014, for the Brazil World Cup. Four tournaments, 119 tippers, 76% returned for the second event. "Push notification" was still a prediction back then.

What changed since

Polymarket exists. AI models that judge football better than 90% of tippers. Telegram bots are grown up. WhatsApp is the comms layer.

What tiptilldone 2026 does differently

  • AI Picks with reasoning for every one of the 104 matches
  • Polymarket live data right next to your tip input
  • Telegram bot so the round lives in your group chat
  • Soulbound NFT trophies — earned, not tradeable
  • Build-in-public on GitHub

When does it kick off

June 11, 2026, opener in Mexico City. Until then we build in front of you — every commit, every decision documented.

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