Changelog

• The dial-in coach itself. Paste a shot, get a next-pull adjustment.
• Knowledge base curated from r/espresso community wisdom, James Hoffmann, Lance Hedrick, SCA extraction theory.
• Pre-diagnostic checks for Breville and Fellow Opus pressurised baskets, bean age, and the "tried everything" signal.
• 15 machines and 11 grinders with documented quirks in the knowledge base.
• Feedback and contact dialogs wired to real notifications.
• Anonymous use. No accounts, no cookies, no tracking.
• Free with a 10-dial-in-per-day soft limit.

Currently your last few shots live in your browser's localStorage. We'd like to add a proper bean library. Multiple bags, multiple machines, see your dial-in curve over time. Probably requires light auth.

The current list covers the most common gear but misses plenty. Manual levers, the newer Lagom and Weber grinders, Cafelat's newer offerings. Working on it as users tell us what they own.

Currently absent from the knowledge base. Water hardness, TDS, mineral profile. Consistently one of the "I've eliminated everything else" variables in real r/espresso threads. We'd like to add a section on it.

Maybe. If enough people use the free tool, a small paid layer for shot history, premium model (Sonnet instead of Haiku), and bean comparisons could keep the lights on and let us put real time into the knowledge base. Not committed yet.