A web tool that works out the optimal car setup in F1 Manager from the in‑game practice feedback. Enter the feedback the game gives you for a setup, hit Find Setup, and it computes the setups that satisfy every piece of feedback — ranked by how close they are to your current car.

🌐 Live: https://f1setup.it 📱 Also on the App Store and Google Play

In F1 Manager each car setup (Front Wing, Rear Wing, Anti‑Roll, Tyre Camber, Toe‑Out) maps to five performance biases (Oversteer, Braking, Cornering, Traction, Straights). During practice the game rates each bias as optimal / great / good / bad. Those ratings constrain how far each bias can be from the hidden ideal.

The calculator:

1. Lets you record the feedback for the setup you ran.
2. Searches the full grid of ~1,000,000 valid setups, keeping only those whose biases are consistent with all the feedback you've given.
3. Returns the closest matching setups so you can converge on the perfect car in a few practice runs.

The search (libs/setup.js) prunes aggressively: each bias is validated at the earliest loop depth at which it is fully determined (Straights after the wings, Oversteer/Traction before Toe‑Out, Braking/Cornering last), and branches are abandoned as soon as their running rule‑break count exceeds the best found.

• Feedback‑driven solver — find all setups matching your practice feedback.
• Click‑to‑cycle feedback — tap a bias to step through optimal → great → good → bad; colour‑coded, with an optional bad+/bad− mode.
• Bias history markers — every recorded feedback is shown as a coloured mark on the bias slider (and as value badges in the run history).
• Multiple slots — keep several cars/drivers side by side.
• Track presets — per‑track starting setups and "perfect range" hints, plus a one‑click Next Track that logs the current setup as optimal and advances.
• Cloud sync — optional Discord sign‑in saves your slots to the cloud (falls back to local storage when signed out).
• Game versions — supports the 2022 / 2023 / 2024 track calendars.

• Next.js 16 (Pages Router) + React 18
• Tailwind CSS + Radix UI primitives + lucide‑react icons
• Redux Toolkit + redux‑persist for state
• NextAuth (Discord) with a MongoDB adapter for cloud sync
• bun as the package manager / runtime

# install dependencies
bun install

# run the dev server (http://localhost:3000)
bun run dev

# production build / start
bun run build
bun run start

The core calculator runs entirely client‑side, so it works without any of the environment variables below — those are only needed for Discord sign‑in and cloud sync.

Create a .env.local in the project root:

MONGODB_URI=          # MongoDB connection string (cloud sync storage)
AUTH_DATABASE_NAME=   # database name for the NextAuth adapter
DISCORD_CLIENT_ID=    # Discord OAuth app client id
DISCORD_CLIENT_SECRET=# Discord OAuth app client secret
NEXTAUTH_SECRET=      # random string used to encrypt sessions

components/        React components
  ui/              Tailwind + Radix UI kit (Button, Select, Slider, Dialog, …)
  Calculator/      the calculator (solver UI, feedback cycle, history markers)
consts/            track data, setup/bias parameters, validators
libs/              setup solver (setup.js), redux reducers, cloud storage
pages/             Next.js pages + API routes (auth, cloud storage)
public/            static assets, incl. the flags.svg sprite
scripts/           gen-flag-sprite.cjs — rebuilds the flag sprite

All country/track flags are bundled into a single namespaced SVG sprite at public/flags.svg (rendered via components/ui/FlagIcon). To regenerate it from the source SVGs in assets/flags/:

node scripts/gen-flag-sprite.cjs

This project is unofficial and is not associated in any way with the Formula 1 companies. F1, FORMULA ONE, FORMULA 1, FIA FORMULA ONE WORLD CHAMPIONSHIP, GRAND PRIX and related marks are trademarks of Formula One Licensing B.V.

MIT © ieb · GitHub: iebb/F1Manager-Calc · Contact: @CyberHono