Entry 236-3 Build in Public 2 min ↩ back to the timeline

The repairman's wishlist

Picking up his repaired phone, Juan gets an unsolicited market study from Sebastián the shop owner. Sebastián wants a CRM for technicians, because things get lost: he once repaired a phone in October and only realized in February, when the customer asked, that it had been sitting done for three months. Then, unprompted, he describes Picky almost exactly, a QR menu for restaurants, on a fridge magnet, with Rappi-like ordering, validating a project the team had parked. And he pitches a wilder one, alcohol-tracking bar cups. The lesson isn't any single idea; it's that a stranger in the field, describing his own pains, both confirms a shelved product and names new ones for free.

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Source transmission · “0 to 1 Million” diary

// trace: where this idea came from

Collecting his repaired phone, Juan gets a market study he didn’t ask for, from Sebastián, the shop owner. Told the team is building an app, Sebastián starts listing what he wishes existed ▸ 28:24, and the first is a CRM for technicians, because things get lost. His proof is a story against himself (seed 236-1): a customer messaged this week asking if the phone was ready, and Sebastián realized he’d repaired it back in October, and it had sat finished for three months while both sides waited for the other to write ▸ 29:01. A tool that tracks each device’s status, and sets the customer’s expectation, would have caught it.

Then the moment that makes the entry: unprompted, Sebastián describes Picky almost exactly. A QR menu for restaurants that owners update daily, printed on a fridge magnet, so anyone can scan and order, a mix with Rappi ▸ 30:56. A stranger has independently reinvented a product they parked, which is the strongest validation there is, and Juan takes it as a reason to consider finishing and shipping it in a few months ▸ 31:42.

un extraño reinventa tu producto: eso es validación →

Not every idea lands. Sebastián’s third is bar cups that track each drinker’s alcohol level and ping the waiter to refill or run a game, which Juan finds both technically hard and ethically off, since he won’t help push more drinking ▸ 32:04. But the lesson isn’t the hit rate of one repairman’s wishlist. It’s that the field validates ideas for free: a person describing his own daily pains will confirm a shelved product and surface new ones faster than any survey, because he isn’t guessing at a market, he is one…

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no entry has continued this idea yet: the arc is still open

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