DynastyZeus

A single-owner Sleeper fantasy-football command center: dynasty/redraft value rankings, a trade calculator and trade finder, a season simulator, scouting charts (QB/RB/WR/TE), a rookie draft board with network consensus, league management, and leaguemate intel — all driven from your connected Sleeper account.

Quick start

npm install
cp .env.example .env.local   # then fill in the values (see below)
npm run dev                  # http://localhost:3000

Scripts

Command	What it does
npm run dev	Start the dev server (Turbopack)
npm run build	Production build (also runs the TypeScript check)
npm run test	Run the Vitest suite
npm run lint	Run ESLint

Tech stack

Next.js 16 (App Router) · React 19 · TypeScript 5 · Tailwind CSS v4 · Supabase (Postgres + Auth + RLS) · Upstash Redis (rate limiting) · Vercel (hosting + cron).

Environment

Copy .env.example → .env.local and fill it in. Only the Supabase credentials are required for core functionality; Upstash and CRON_SECRET are for production rate-limiting and scheduled jobs. All external data sources (Sleeper, FantasyCalc, FantasyPros, ESPN, Google Sheets) are public APIs that need no keys.

Database

Apply the migrations in supabase/migrations/ in numeric order via the Supabase SQL editor (or supabase db push). supabase/schema.sql is a full snapshot for reference / disaster recovery — the migration chain is the source of truth.

More docs

• HANDOFF.md — architecture overview, tech stack, and file layout.
• AGENTS.md — contributor notes, including the Next.js 16 API differences to be aware of before writing code.