What I am building with products, AI agents and data: the decisions, the costs and the lessons each attempt leaves behind.https://curaca.ai/enhttps://curaca.ai/en/bitacora/what-gets-taken-out/https://curaca.ai/en/bitacora/what-gets-taken-out/Removing the wholesale market from the product, simplifying the home page and carts, and adding the Bolsa as a mascot. A week of deciding what to leave out.Thu, 24 Sep 2026 00:00:00 GMTnadamenosjournalproductgonzalo@curaca.ai (Gonzalo Márquez)https://curaca.ai/en/bitacora/a-home-cooking-recipe-book/https://curaca.ai/en/bitacora/a-home-cooking-recipe-book/One hundred Peruvian home recipes with household measures — cups, spoonfuls, cloves of garlic — and a week that fills itself in with one tap.Wed, 23 Sep 2026 00:00:00 GMTnadamenosjournalproductgonzalo@curaca.ai (Gonzalo Márquez)https://curaca.ai/en/bitacora/the-generic-becomes-a-card/https://curaca.ai/en/bitacora/the-generic-becomes-a-card/Someone who types "milk" isn't looking for a brand. Turning the generic into a card of its own, with hundreds of products that had to be separated without mixing what shouldn't mix.Wed, 23 Sep 2026 00:00:00 GMTnadamenosjournaldatagonzalo@curaca.ai (Gonzalo Márquez)https://curaca.ai/en/bitacora/the-redesign-lands/https://curaca.ai/en/bitacora/the-redesign-lands/What I planned on paper was built screen by screen and went through a massive review. The hardest part was deciding what, out of everything, stayed out.Tue, 22 Sep 2026 00:00:00 GMTnadamenosjournaldesigngonzalo@curaca.ai (Gonzalo Márquez)https://curaca.ai/en/bitacora/a-faster-judge-for-the-catalog/https://curaca.ai/en/bitacora/a-faster-judge-for-the-catalog/Judging whether two products are the same, case by case, doesn't scale. I brought in an outside service that clears the obvious cases on its own, saving the costly judgment for what disagrees.Wed, 16 Sep 2026 00:00:00 GMTnadamenosjournaldatagonzalo@curaca.ai (Gonzalo Márquez)https://curaca.ai/en/bitacora/rethinking-the-interface-from-scratch/https://curaca.ai/en/bitacora/rethinking-the-interface-from-scratch/Before redesigning, I studied dozens of real apps to understand what actually works. Then came the hard part — deciding what of all that was Nada Menos.Tue, 15 Sep 2026 00:00:00 GMTnadamenosjournaldesigngonzalo@curaca.ai (Gonzalo Márquez)https://curaca.ai/en/bitacora/the-catalog-opens-up-and-the-list-gets-polished/https://curaca.ai/en/bitacora/the-catalog-opens-up-and-the-list-gets-polished/Baby products, pet supplies, liquor and beauty join the catalog. Plus a batch of small shopping-list fixes — removing, undoing, where to add — that add up to feeling big.Fri, 11 Sep 2026 00:00:00 GMTnadamenosjournalproductgonzalo@curaca.ai (Gonzalo Márquez)https://curaca.ai/en/bitacora/the-app-becomes-real/https://curaca.ai/en/bitacora/the-app-becomes-real/A real icon, signing in with Google from inside the app, and a scanner that answers "where's this cheaper" with the camera. Tested on an actual phone.Thu, 10 Sep 2026 00:00:00 GMTnadamenosjournalproductgonzalo@curaca.ai (Gonzalo Márquez)https://curaca.ai/en/bitacora/the-app-learns-to-measure-without-spying/https://curaca.ai/en/bitacora/the-app-learns-to-measure-without-spying/Improving the product means knowing what people use and what they don't. Building that measurement without storing what someone typed or who they are.Thu, 10 Sep 2026 00:00:00 GMTnadamenosjournalproductgonzalo@curaca.ai (Gonzalo Márquez)https://curaca.ai/en/bitacora/the-price-depends-on-who-is-asking/https://curaca.ai/en/bitacora/the-price-depends-on-who-is-asking/Some stores charge differently depending on the card or membership you use. Ignoring that meant the "cheapest" price we showed wasn't always the real one.Wed, 09 Sep 2026 00:00:00 GMTnadamenosjournalproductgonzalo@curaca.ai (Gonzalo Márquez)https://curaca.ai/en/bitacora/reorganizing-the-house-before-it-grows/https://curaca.ai/en/bitacora/reorganizing-the-house-before-it-grows/The front-end code had grown fast and tangled. Before building the app, every piece got its own name, its own boundary, and its own test.Tue, 08 Sep 2026 00:00:00 GMTnadamenosjournalengineeringgonzalo@curaca.ai (Gonzalo Márquez)https://curaca.ai/en/bitacora/what-the-instrument-doesnt-look-at/https://curaca.ai/en/bitacora/what-the-instrument-doesnt-look-at/If the product is going to say every day where things are cheaper, it had better be right. I spent this week measuring how often it isn't.Tue, 08 Sep 2026 00:00:00 GMTnadamenosjournaldatagonzalo@curaca.ai (Gonzalo Márquez)https://curaca.ai/en/bitacora/the-brand-learns-to-speak/https://curaca.ai/en/bitacora/the-brand-learns-to-speak/Nada Menos starts telling people every day what got cheaper, with a synthetic presenter of its own. Generating the video was the easy part.Mon, 07 Sep 2026 00:00:00 GMTnadamenosjournalbrandgonzalo@curaca.ai (Gonzalo Márquez)https://curaca.ai/en/bitacora/the-catalog-audits-itself/https://curaca.ai/en/bitacora/the-catalog-audits-itself/Duplicate product cards kept slipping through. The discipline of measuring every fix before calling it good, taken one step further.Mon, 07 Sep 2026 00:00:00 GMTnadamenosjournaldatagonzalo@curaca.ai (Gonzalo Márquez)https://curaca.ai/en/bitacora/mi-semana-planning-the-whole-week/https://curaca.ai/en/bitacora/mi-semana-planning-the-whole-week/The question missing from the picture came before the shopping list — what to cook. Mi semana is a weekly planner built for whoever plans a family's meals.Sun, 06 Sep 2026 00:00:00 GMTnadamenosjournalproductgonzalo@curaca.ai (Gonzalo Márquez)https://curaca.ai/en/bitacora/operating-live/https://curaca.ai/en/bitacora/operating-live/The bugs that only show up once real people use the product every day. And the rule I adopted so none of them slip by unnoticed again.Sat, 05 Sep 2026 00:00:00 GMTnadamenosjournalproductgonzalo@curaca.ai (Gonzalo Márquez)https://curaca.ai/en/bitacora/landing-in-the-cloud/https://curaca.ai/en/bitacora/landing-in-the-cloud/Everything built so far had lived on a laptop. The story of the first real deployment, and the surprises that only show up once real traffic arrives.Fri, 04 Sep 2026 00:00:00 GMTnadamenosjournalinfrastructuregonzalo@curaca.ai (Gonzalo Márquez)https://curaca.ai/en/bitacora/a-face-of-its-own/https://curaca.ai/en/bitacora/a-face-of-its-own/Nada Menos adopts Curaca's design system. The quipu, the knotted-cord instrument, becomes the central metaphor for the spending chart.Wed, 02 Sep 2026 00:00:00 GMTnadamenosjournaldesigngonzalo@curaca.ai (Gonzalo Márquez)https://curaca.ai/en/bitacora/making-comparison-actually-save-money/https://curaca.ai/en/bitacora/making-comparison-actually-save-money/Driving to three stores to save fifty cents isn't saving, it's a hassle. How I thought through splitting a long shopping list across several stores.Tue, 01 Sep 2026 00:00:00 GMTnadamenosjournalproductgonzalo@curaca.ai (Gonzalo Márquez)https://curaca.ai/en/bitacora/the-real-problem-recognizing-the-same-product/https://curaca.ai/en/bitacora/the-real-problem-recognizing-the-same-product/Four supermarkets, each with its own way of naming and packaging the same item. The story of Nada Menos's hardest problem, and a catalog that broke once.Sat, 29 Aug 2026 00:00:00 GMTnadamenosjournaldatagonzalo@curaca.ai (Gonzalo Márquez)https://curaca.ai/en/bitacora/keeping-lists-from-getting-lost/https://curaca.ai/en/bitacora/keeping-lists-from-getting-lost/A shopping list that only lives in the browser disappears the day you switch phones. Moving from a demo to something people can actually rely on.Tue, 25 Aug 2026 00:00:00 GMTnadamenosjournalproductgonzalo@curaca.ai (Gonzalo Márquez)https://curaca.ai/en/bitacora/the-comparator-is-born/https://curaca.ai/en/bitacora/the-comparator-is-born/The first version of Nada Menos already had to solve something far from trivial — the same product goes by a different name at every supermarket.Mon, 24 Aug 2026 00:00:00 GMTnadamenosjournalproductgonzalo@curaca.ai (Gonzalo Márquez)https://curaca.ai/en/bitacora/why-curaca-exists/https://curaca.ai/en/bitacora/why-curaca-exists/Twenty years selling technology, and now I build it with a team of AI agents. Why I am leaving a commercial role to code again.Thu, 20 Aug 2026 00:00:00 GMTcuracajournalfoundergonzalo@curaca.ai (Gonzalo Márquez)