Personal site for Anton Batiaev — the operator record, a knowledge base on options and derivatives risk, and a set of free calculators that run entirely in the browser.
Working on this? Read AGENTS.md first. It carries the brief, the copy rules and the conventions that are not recoverable from the code.
Vite · TypeScript · React · Tailwind · shadcn-ui · Recharts · MDX.
No backend; static files served from docs/ by GitHub Pages.
npm run dev— local dev servernpm run verify— the quality gate (see below)npm run lintnpm run build— production build todist/(gitignored)npm run prodBuild— sitemap, llms.txt, build and prerender intodocs/
Only prodBuild deploys. Nothing is live until docs/ is rebuilt and committed.
npm run verify runs every suite below plus a render smoke test — around 295
assertions in total.
| Command | What it pins down |
|---|---|
verify:options | Black-Scholes and Black-76 against textbook values, payoff metrics, share-URL round-tripping |
verify:hedging | Delta-hedging a short option: closed-form compounding, break-even at matched volatility against the Monte Carlo standard error, discrete hedging error shrinking with rehedge count |
verify:smile | Implied-vol inversion round-tripping to 1e-7, refusal where a quote carries no vega, recovery of a known smile's level, skew and curvature |
verify:retirement | Real-terms compounding, the 4% rule as a sanity anchor, monotonicity in every lever, wrapper access ages, hostile input |
verify:tax | 2026/27 income tax, NI, corporation and dividend tax |
verify:structures | Employment structures for the take-home comparison |
verify:offer | Compensation archetypes and dilution |
verify:render | Renders every route in Node and asserts on the HTML |
Pre-existing lint and type errors live in unused src/components/ui/ shadcn
components. Everything outside that directory stays clean.