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gm legends, happy Thursday.

Vercel Day is live and the launches are stacking up. In today's pile: a cryptographer who built inference that can't read your code, Reddit's complaints turned into a company catalog, and a real wind tunnel running in a browser tab. Your votes decide who takes the $12k.

Vercel Day is happening right now: launches tagged "Vercel Day" have been landing on the leaderboard all day, from solo weekend builds to products that clearly weren't started this morning.

Here's the part where you come in. The top launches walk away with $12k in Vercel credits and a meeting with Vercel Ventures, and top is decided by votes. Yours. Five minutes on the leaderboard is enough to move real money, and a real meeting, to a maker who shipped something today.

So go dig through the tag, upvote what deserves it, and leave a comment while you're there. Makers answer everything on launch day.

Zro is a private inference endpoint for coding agents: fast open-weight models like GLM 5.2, served from EU infrastructure with zero request retention. Nothing stored, nothing trained on, plug it into the tools you already run.

🔥 Our Take: Every coding agent ships your code to someone else's API, and you just sort of hope. Omer Shlomovits spent a decade in crypto on math for computing on secrets without seeing them, ZenGo, zero-knowledge proofs, the company name is literally slang for it. OpenRouter and friends sell speed and price. He's selling "we can't read your code," and he's the rare person who can say that with a straight face.

Full disclosure: Wispr Flow is the AI dictation tool most of us at Product Hunt (use we still have a few holdout typers, what romantics). Hold a key, talk, and clean text drops straight into whatever app you're already in — Slack, email, Notion, your IDE, wherever your cursor lives. No switching windows. No copy-paste ritual. Just say the thing – yes, you can whisper it – and even your most run-on sentences will be turned into polished writing at 4x the speed of typing.

Jeremy Galang got tired of picking what to build by shower thought, his words, so he built The Eureka Database: startup ideas mined from real Reddit complaints, each one shipped with the source threads, proof somebody's already paying for a fix, and a working demo.

🔥 Our Take: A billion people a month go on Reddit to complain, and a decent chunk of those complaints are product requests nobody built. Galang is a Columbia senior who admits he used to pick projects off shower thoughts, so I believe him on the problem. Fair warning, BigIdeasDB mines the same threads, and everyone downloading validated ideas is holding the same list. But it's Vercel Day. You could be shipping one of these by dinner.

Ventorah runs a virtual wind tunnel in your browser: drop in a 3D model, set wind speed and direction, and a cloud OpenFOAM solver streams back streamlines, pressure fields, lift and drag while you watch.

🔥 Our Take: This is real OpenFOAM, the solver actual engineers use, not an AI guessing at airflow. Shah publishes his benchmarks, sphere drag within about 10% of real wind-tunnel data, which won't certify a plane and he doesn't claim it will. Three days ago he was on the high school robotics forum teaching kids to test their designs. Those kids were never getting an ANSYS license.