Eat what you want; vopti tells you how much. Pick your foods, fast food included, lock what you've already had, and it solves the exact grams of everything else so the day lands on your macros. Training volume and cycle tracking included, in English and Spanish.

Fit your chain: McDonald's · Burger King · Chipotle · Chick-fil-A · Taco Bell · Wendy's

Answers: Can you eat whatever you want and lose weight? · Losing weight on fast food · How much to eat to hit your macros

An educational and analytical finance lab: bond pricing, DCF, portfolio frontiers, options, risk — every formula unit-tested against published worked examples. Educational tooling, never investment advice.

research

Working papers in finance and economics — volatility forecasting, machine-learned direction under honest validation, momentum net of real frictions. Each one published as a PDF, open access.

Share, adapt, and use it commercially — with attribution. Cite each paper as it appears on its own title page.