Interesting! Given the obvious AI-written nature of this, I'd probably want to double-check the math, but it's a neat concept.

As a homebrewer, the standard approach is to look up / measure your tap water's profile, buy a few grams of additives (gypsum, calcium chloride, epsom salt, etc), and add them to compensate. But if you don't have your water profile handy, this could work in a pinch. 5 gallons of bottled water is an expensive approach, though!

For anyone that decides to vibe-code these kind of tools, have a generated content vs. manual labour split.

This isn't bound to AI-use, even if you scrape factual content, a million and one things can go wrong, so having some kind of checkbox that says "Yes, I have reviewed and verified it is one hundred and fifty percent certainly confidently true, a fact even" forces you to verify what you're publishing is true.

A POC is only 10% of the way.