Show HN: Sheet Ninja – Google Sheets as a CRUD Back End for Vibe Coders https://ift.tt/x58VPUT

Show HN: Sheet Ninja – Google Sheets as a CRUD Back End for Vibe Coders https://sheetninja.io March 29, 2026 at 08:42AM

Show HN: WhatToBuy – Describe your situation, get AI-curated shopping carts https://ift.tt/t4lUsmM

Show HN: WhatToBuy – Describe your situation, get AI-curated shopping carts Before reading text please try the app https://www.whattobuy.app (to get great UX feedback) Shopping research is one of the most challenging tasks and people spend 30-60 min before buying an item. We developed a platform called “WhatToBuy” to save people time. In some cases shoppers are not super aware of what to really order for a trip or occasion. Our app helps them to get a range of products needed for each use-cases hence saving time and money. App workflow: Describe your situation in plain English. In Fast mode, you get three ready-to-shop carts: Budget, Balanced, and Premium with real products, real prices, and direct buy links. In Deep mode, AI assistant has a conversation with you first and builds a single cart tailored specifically to your answers. How it works: * You type something like "camping weekend with two young kids" or "setting up a home office on a tight budget" * AI assistant (powered by Claude) parses the scenario and generates a list of specific product search queries. For example, in the above query for camping, product search will be "tent 4-person easy setup" instead of simply "tent". * Those queries hit Shopping API and return real-time results. * A scoring layer ranks by price, rating, and review count to pick one winner per product category per tier. Two modes: * Deep (default): AI assistant asks a few follow up questions before building a single personalized cart. We default to this because more context means dramatically better picks. Sign in is required for this mode, but you can always drop back to Fast mode with one click. * Fast: Instant three-tier carts, no sign in needed, works right away. Please take a look: https://www.whattobuy.app No account needed to try the fast mode. Would love feedback on where the recommendations miss or where the UX feels off. March 29, 2026 at 06:59AM

Show HN: Public transit systems as data – lines, stations, railcars, and history https://ift.tt/Q9cjnaC

Show HN: Public transit systems as data – lines, stations, railcars, and history https://ift.tt/u3YsoW8 March 29, 2026 at 04:38AM

Show HN: a Rust CLI to automatically swap monitor focus based on your gaze https://ift.tt/joR9kuz

Show HN: a Rust CLI to automatically swap monitor focus based on your gaze https://ift.tt/50tBXcl March 28, 2026 at 04:38PM

Show HN: Free, in-browser PDF editor https://ift.tt/n4k9cC8

Show HN: Free, in-browser PDF editor Edit, sign, merge, compress, redact, OCR, fill forms, extract tables, and 30+ more tools — all in the browser, no sign-up. Files never leave your computer. Now with a desktop app (macOS/Windows/Linux) and a CLI/SDK for developers. https://ift.tt/PAQpXKt March 28, 2026 at 12:44PM

Show HN: How to get 100 customers building in public https://ift.tt/eJhkLQy

Show HN: How to get 100 customers building in public https://ift.tt/uSHYUbG March 28, 2026 at 06:49AM

Show HN: NUPA is Pax Economica, 6,480x more stable than current US economy https://ift.tt/t0A2UPa

Show HN: NUPA is Pax Economica, 6,480x more stable than current US economy NUPA: private post-scarcity OS using BLM land leases + contract law. 100M Monte Carlo runs show 99.999999% survival, 6,480x more resilient than US GDP under systemic noise. Fixed Cost Arbitrage beats AI job loss—humans cheaper than robots. No taxes, no strikes. Python scripts on repo in /simulations folder. Repo: https://ift.tt/4YDOycE... Short explainer video: https://youtu.be/RE560yVFb0I?si=UlVPkmCkrsg24Dzj March 28, 2026 at 03:44AM