Michael Liendo I write down thoughts and solutions on Software Engineering topics.
Two ways to stop checking Pago Móvil screenshots by hand: the customer enters their reference and the system looks it up at the bank, or an AI reads the screenshot and it's reconciled against the bank statement later. With real examples from two Venezuelan businesses.
Read noteAfter building custom WhatsApp bots for Venezuelan shops, I saw they all needed the same thing. Engrana AI is that bot turned into a product: it answers, quotes in bolívares, collects payment details and logs the order, on the official WhatsApp API.
Read noteAI multiplied what a content team produces, but nobody multiplied the review. A 30X Hackathon finalist: I built a filter that decides in milliseconds whether each piece goes out, and fixes it on its own if it doesn't: 1,000 decisions in 4.5 seconds.
Read noteFive days, sixteen proposals and about US$50 invested. My first client paid me US$150 for a WhatsApp bot I delivered in a day, and left a 5-star review. Here's what I did and what I'd do differently.
Read noteWhat you actually pay each month for an AI WhatsApp bot: WhatsApp messages, AI, server and maintenance, with real numbers from two Venezuelan businesses and how to tell if it's worth it.
Read noteA real case from a Venezuelan company that took orders and payments over WhatsApp: it now moves 2.6 times more money and earns 75% more, with 3 people instead of 12, serves twice as many customers and pays about US$150 a month in AI.
Read noteA real case from a Caracas store that sells on WhatsApp: customers who waited 7 hours on average, and up to a week, now get a reply in 2 minutes. Here is how we built it.
Read noteWhy your shared package breaks when another app in the monorepo imports it, and how to set it up properly: .js extensions, type module, exports for ESM and CJS, moduleResolution, tsup or swc, and Node's type stripping.
Read noteBuild the APK for your Expo and React Native app on your own computer, for free and without EAS servers: with expo prebuild, Gradle or Android Studio. Step by step, for debug and release.
Read noteSet up Husky v9 to check your code with Prettier and ESLint before every commit, and commitlint to enforce Conventional Commits. Step by step, with current commands.
Read noteWhat git squash is and how to combine several commits into one, step by step: with git rebase -i, git reset --soft and git merge --squash. Plus how to push it and how to undo it.
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