# HPDE.app / hpdeapp.com — Comprehensive Architectural & Commercial Specification

## 1. Company & Mission
HPDE.app is an independent motorsport technology company founded on the principle: "We don't watch from the couch. We drive on track."
While Formula 1, NASCAR, and IndyCar capture TV spectator entertainment, grassroots High Performance Driver Education (HPDE), track days, and car culture represent over 100x more active drivers, over 500,000 sports car owners, and billions in real economic activity (tires, fuel, brakes, safety gear, entry fees, transport, and track rentals).

HPDE.app is the "Switzerland of Motorsport"—an open, sovereign platform that operates independently of any single sanctioning body, unifying drivers and track day organizers across North America.

## 2. Driver Weaponry (100% Free Forever)
To achieve bottom-up adoption, all driver tools are 100% free forever:
1. **Universal Digital Driver Passport**:
   - Native Apple Wallet and Google Wallet integration (.pkpass format).
   - Dynamic status color: Amber for 'Pending Morning Tech Inspection', Green for 'Cleared Hot Pit Lane'.
   - Cryptographically signed QR barcode verified at the gate in <1 second by track marshals.
2. **Universal Skill Index (USI)**:
   - Level 1.0 (Novice Guided): Passing on designated straights only with verified point-by. NASA HPDE 1, Chin Green, PCA Green, SCCA Novice.
   - Level 2.0 (Solo Evaluated): First solo check-ride completed. NASA HPDE 2, PCA White, SCCA Intermediate.
   - Level 3.0 (Intermediate Solo): High track awareness, passing on all straights with point-by. NASA HPDE 3, Chin Blue, PCA Blue.
   - Level 4.0 (Advanced Solo): Passing anywhere on circuit with point-by, including corners. NASA HPDE 4, Chin Red.
   - Level 5.0 (Racer / Instructor): Unrestricted passing, competition licensed, MSF certified. NASA TT/Comp, Chin Orange, PCA Red.
3. **Thermal Cold-to-Hot Tire PSI Advisor**:
   - Dynamic thermal pressure calculation based on ambient temperature, asphalt temperature, compound rating (200TW vs 100TW vs Slick), and circuit lateral load bias (clockwise vs counter-clockwise).
4. **Universal Vehicle Garage & Stint Logbook**:
   - Multi-car profile tracking brake fluid flush dates, brake pad thickness (mm), rotor heat cycles, and tire hot PSI trends across all track events.

## 3. Commercial Architecture for Event Organizers (ADR-011)
Legacy platforms (MotorsportReg, Hagerty, ClubRegistration) extract 4% to 6% in per-ticket fees and hold cash in 30-day corporate escrow.
HPDE.app disrupts this legacy model:
- **$0.00 Per-Ticket Transaction Fees**: HPDE.app never skims money off individual ticket sales.
- **Direct Stripe Merchant Settlement**: Organizers connect their own Stripe account; ticket revenue drops directly into their bank account within 24 to 48 hours.
- **Scaled Capacity SaaS**:
  - Starter Tier (≤250 drivers/year): $299/mo ($3,588/year)
  - Scale Tier (≤750 drivers/year): $599/mo ($7,188/year)
  - Enterprise Tier (>750 drivers/year): $999/mo ($11,988/year)
- **Master Sanctioning Franchise Rev-Share (The Chin Play)**:
  - 15% to 25% recurring SaaS royalty paid to Master HQs (Chin Track Days HQ, PCA National, NASA), accompanied by a National Master Command Cockpit.

## 4. Operational Trackside Suite
- **Race Control Tower**: 8-flag switchboard matrix, real-time safety condition broadcasting, incident logging, and false grid staging manager.
- **Virtual Audio PA Dispatcher**: Web Audio API dual-tone chimes and Web Speech API synthetic voice announcements over paddock speakers and driver mobile devices.
- **Paddock TV Kiosk Mode**: Fullscreen high-visibility broadcast displays for pit out, driver lounge, and classroom monitors showing live weather radar, active run groups, and sponsor spotlights.
- **Visual Garage Stall & Paddock Bay Selector**: Interactive spatial map of covered garages and paddock stalls with vehicle silhouettes and driver tags.

## 5. Technology Stack
- Next.js 16 (App Router) & React 19.
- Pure Vanilla CSS Design System (Zero Tailwind).
- Supabase PostgreSQL with real-time WebSocket subscriptions.
- Stripe Payment Engine & Connect direct settlement.
- PWA Native Hardware integration (Camera QR scanning, Web Audio API, Web Speech API).