🏆 SevenFit - 7-Minute Scientific Interval Training

A modern, 100% offline, privacy-first 7-minute interval workout web application inspired by scientific high-intensity circuit training (HICT). Features real-time biomechanical mannequin animations, synthesized coach personalities, a gamified 3-hearts streak system, custom workout builder, and full data export/import capabilities.

🌐 https://vapoafe.github.io/SevenFit

🚀 Key Features

• 🏋️‍♂️ Scientifically Proven Circuits: Classic 7-Minute HIIT routine, Core & Abs, Upper Body, Joint-Safe Low Impact, and Mobility circuits.

• 🧍 Biomechanical Mannequin Canvas: Interactive real-time animated human model displaying joint mechanics, movement trajectory, and target muscle highlights.

• 🗣️ 5 Motivating Coach Personalities:

  • 🪖 Sgt. Rex: Tough-love military drill instructor

  • ✨ Chloe: Energetic, uplifting cheerleader

  • 🧘 Kai: Calm, mindful Zen master

  • 🤖 Unit 7000: Cybernetic futuristic coach

  • 🔔 Minimalist: Clean audio chimes, bells, and whistles only

• 💖 Seven 3-Hearts & Streak System: Daily streak protection discipline with heart recovery upon consistent workouts.

• 🎨 Multi-Theme Support: Dark Navy, OLED Pitch Black (battery-saving), and Crisp Light Mode.

• 🛠️ Custom Routine Builder: Sequence your own exercise circuits with custom work & rest intervals.

• 🔒 100% Offline & Private: Zero analytics, zero cookies, zero external API tracking, and local JSON backup/restore.

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💻 Local Development

# 1. Clone the repository
git clone https://github.com/vapoafe/SevenFit.git
cd SevenFit

# 2. Install dependencies
npm install

# 3. Start development server
npm run dev

# 4. Build for production (outputs to /dist)
npm run build

# 5. Preview production build locally
npm run preview

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📱 Packaging for Android / F-Droid

This repository is built using standard web standards and can be packaged into a standalone Android APK using Capacitor:

# Install Capacitor CLI
npm install @capacitor/core @capacitor/cli @capacitor/android

# Initialize Capacitor
npx cap init "SevenFit" "io.github.vapoafe.sevenfit" --web-dir "dist"

# Add Android platform
npx cap add android

# Build web assets and sync to Android project
npm run build
npx cap sync android

# Open in Android Studio to build APK / AAB
npx cap open android

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📄 License

This project is licensed under the terms of the GNU General Public License v3.0.