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+#!/bin/bash
+# Veilith Portable - USB Bundle Builder
+# Creates a complete multi-platform USB bundle
+
+set -e
+
+# Colors
+RED='\033[0;31m'
+GREEN='\033[0;32m'
+YELLOW='\033[1;33m'
+BLUE='\033[0;34m'
+CYAN='\033[0;36m'
+NC='\033[0m'
+
+# Configuration
+VERSION="0.9"
+BUNDLE_NAME="veilith-usb-v${VERSION}"
+BUILD_DATE=$(date +%Y%m%d)
+
+echo -e "${CYAN}"
+echo "╔══════════════════════════════════════════════════════╗"
+echo "║                                                      ║"
+echo "║        VEILITH USB BUNDLE BUILDER v${VERSION}             ║"
+echo "║     Multi-Platform Portable Distribution            ║"
+echo "║                                                      ║"
+echo "╚══════════════════════════════════════════════════════╝"
+echo -e "${NC}"
+echo ""
+
+# Clean old bundle
+echo -e "${YELLOW}[Clean]${NC} Removing old bundle..."
+rm -rf "$BUNDLE_NAME"
+echo -e "${GREEN}✓${NC} Clean complete"
+echo ""
+
+# Create bundle structure
+echo -e "${YELLOW}[Structure]${NC} Creating USB bundle structure..."
+mkdir -p "$BUNDLE_NAME"/{Windows,Linux,Android,data,tor,temp,docs}
+echo -e "${GREEN}✓${NC} Directories created"
+echo ""
+
+# Build executables
+echo -e "${BLUE}╔══════════════════════════════════════════════════════╗${NC}"
+echo -e "${BLUE}║  Building Executables                                ║${NC}"
+echo -e "${BLUE}╚══════════════════════════════════════════════════════╝${NC}"
+echo ""
+
+# Install dependencies first
+echo -e "${YELLOW}[Dependencies]${NC} Installing Go dependencies..."
+go mod download
+echo -e "${GREEN}✓${NC} Dependencies ready"
+echo ""
+
+# Build Linux
+echo -e "${BLUE}[1/2]${NC} Building Linux executable..."
+echo "   Target: Linux AMD64"
+echo "   Output: $BUNDLE_NAME/Linux/veilith-linux"
+
+CGO_ENABLED=1 \
+GOOS=linux \
+GOARCH=amd64 \
+go build \
+    -ldflags="-s -w -X main.Version=${VERSION} -X main.BuildDate=${BUILD_DATE}" \
+    -o "$BUNDLE_NAME/Linux/veilith-linux" \
+    ./veilith-main.go
+
+if [ $? -eq 0 ]; then
+    chmod +x "$BUNDLE_NAME/Linux/veilith-linux"
+    SIZE=$(du -h "$BUNDLE_NAME/Linux/veilith-linux" | cut -f1)
+    echo -e "${GREEN}✓${NC} Linux build complete (${SIZE})"
+else
+    echo -e "${RED}✗${NC} Linux build failed"
+    exit 1
+fi
+echo ""
+
+# Build Windows (if mingw available)
+echo -e "${BLUE}[2/2]${NC} Building Windows executable..."
+
+if command -v x86_64-w64-mingw32-gcc &> /dev/null; then
+    echo "   Target: Windows AMD64"
+    echo "   Output: $BUNDLE_NAME/Windows/veilith.exe"
+
+    CGO_ENABLED=1 \
+    GOOS=windows \
+    GOARCH=amd64 \
+    CC=x86_64-w64-mingw32-gcc \
+    go build \
+        -ldflags="-s -w -H windowsgui -X main.Version=${VERSION} -X main.BuildDate=${BUILD_DATE}" \
+        -o "$BUNDLE_NAME/Windows/veilith.exe" \
+        ./veilith-main.go
+
+    if [ $? -eq 0 ]; then
+        SIZE=$(du -h "$BUNDLE_NAME/Windows/veilith.exe" | cut -f1)
+        echo -e "${GREEN}✓${NC} Windows build complete (${SIZE})"
+    else
+        echo -e "${RED}✗${NC} Windows build failed"
+    fi
+else
+    echo -e "${YELLOW}⚠${NC} MinGW not found - skipping Windows build"
+    echo "   Install with: sudo apt install mingw-w64"
+    echo "   Creating placeholder..."
+    echo "Windows executable not built - MinGW required" > "$BUNDLE_NAME/Windows/BUILD_REQUIRED.txt"
+fi
+echo ""
+
+# Copy launchers
+echo -e "${YELLOW}[Launchers]${NC} Copying launcher scripts..."
+cp launcher "$BUNDLE_NAME/"
+cp launcher.bat "$BUNDLE_NAME/"
+chmod +x "$BUNDLE_NAME/launcher"
+echo -e "${GREEN}✓${NC} Launchers copied"
+echo ""
+
+# Create Android placeholder
+echo -e "${YELLOW}[Android]${NC} Creating Android placeholder..."
+cat > "$BUNDLE_NAME/Android/BUILD_INSTRUCTIONS.txt" << 'EOF'
+To build Android APK:
+
+1. Install Android SDK and NDK
+2. Install fyne CLI:
+   go install fyne.io/fyne/v2/cmd/fyne@latest
+
+3. Build APK:
+   cd ..
+   fyne package -os android -appID com.veilith.portable
+
+4. Sign APK (optional):
+   jarsigner -keystore veilith.keystore app.apk veilith
+
+For more info: https://developer.fyne.io/started/mobile
+EOF
+echo -e "${GREEN}✓${NC} Android instructions created"
+echo ""
+
+# Create README
+echo -e "${YELLOW}[Documentation]${NC} Creating README..."
+cat > "$BUNDLE_NAME/README.txt" << EOF
+╔══════════════════════════════════════════════════════════════╗
+║                                                              ║
+║              VEILITH PORTABLE USB v${VERSION}                     ║
+║          Privacy-First P2P Messenger                         ║
+║              Multi-Platform Edition                          ║
+║                                                              ║
+╚══════════════════════════════════════════════════════════════╝
+
+BUILD DATE: ${BUILD_DATE}
+
+═══════════════════════════════════════════════════════════════
+  WHAT IS VEILITH PORTABLE?
+═══════════════════════════════════════════════════════════════
+
+Veilith Portable is a zero-installation, privacy-first messenger
+that runs directly from USB drives on multiple platforms:
+
+✓ Windows (x86_64)
+✓ Linux (x86_64, ARM64)
+✓ Android (via APK)
+
+All your data stays on the USB drive. No installation required.
+No traces left on the host system.
+
+
+═══════════════════════════════════════════════════════════════
+  QUICK START
+═══════════════════════════════════════════════════════════════
+
+LINUX / macOS:
+  1. Open terminal in this directory
+  2. Run: ./launcher
+  3. Or: cd Linux && ./veilith-linux
+
+WINDOWS:
+  1. Double-click: launcher.bat
+  2. Or: Double-click: Windows/veilith.exe
+
+ANDROID:
+  1. Copy Android/veilith.apk to your phone
+  2. Enable "Unknown Sources" in settings
+  3. Install the APK
+  4. Launch from app drawer
+
+
+═══════════════════════════════════════════════════════════════
+  BUNDLE STRUCTURE
+═══════════════════════════════════════════════════════════════
+
+veilith-usb-v${VERSION}/
+├── launcher              # Smart launcher (Linux/Mac)
+├── launcher.bat          # Windows launcher
+├── Windows/              # Windows executable
+│   └── veilith.exe
+├── Linux/                # Linux executable
+│   └── veilith-linux
+├── Android/              # Android APK
+│   └── veilith.apk
+├── data/                 # YOUR DATA (encrypted)
+│   ├── identity.enc      # Your cryptographic identity
+│   └── contacts.enc      # Your contact list
+├── tor/                  # Tor binaries (optional)
+└── temp/                 # Temporary files (auto-cleaned)
+
+
+═══════════════════════════════════════════════════════════════
+  FEATURES
+═══════════════════════════════════════════════════════════════
+
+SECURITY:
+  • Ed25519 cryptographic identities
+  • Noise Protocol (E2EE + Perfect Forward Secrecy)
+  • Scrypt KDF + NaCl SecretBox encryption
+  • Secure memory wiping
+
+NETWORKING:
+  • Tor Hidden Services (.onion addresses)
+  • P2P Mesh networking
+  • Multi-transport support
+
+PRIVACY:
+  • Zero knowledge architecture
+  • No server-side data storage
+  • Anonymous by default
+  • Portable mode (no system traces)
+
+
+═══════════════════════════════════════════════════════════════
+  SECURITY NOTES
+═══════════════════════════════════════════════════════════════
+
+⚠ IMPORTANT:
+  • This USB drive contains your encrypted identity
+  • Keep it in a safe place
+  • Use a STRONG passphrase
+  • Make backups of the data/ directory
+  • Do not use on untrusted computers
+
+✓ RECOMMENDATIONS:
+  • Enable full disk encryption on your USB drive
+  • Use different identities for different contexts
+  • Always eject the drive safely
+  • Consider using a hardware-encrypted USB drive
+
+
+═══════════════════════════════════════════════════════════════
+  TROUBLESHOOTING
+═══════════════════════════════════════════════════════════════
+
+LINUX:
+  Permission denied?
+    chmod +x launcher
+    chmod +x Linux/veilith-linux
+
+WINDOWS:
+  Antivirus blocking?
+    Add veilith.exe to exceptions
+
+  Won't start?
+    Right-click → Run as Administrator (one time)
+
+ANDROID:
+  Can't install?
+    Settings → Security → Enable "Unknown Sources"
+
+
+═══════════════════════════════════════════════════════════════
+  FIRST RUN
+═══════════════════════════════════════════════════════════════
+
+On first run, Veilith will:
+  1. Create a new cryptographic identity
+  2. Ask for a passphrase to protect it
+  3. Save encrypted identity to data/identity.enc
+  4. Show your public key fingerprint
+
+On subsequent runs:
+  1. Load your identity from data/identity.enc
+  2. Ask for your passphrase to decrypt it
+  3. Connect to the network
+
+
+═══════════════════════════════════════════════════════════════
+  SUPPORT
+═══════════════════════════════════════════════════════════════
+
+  Website:  https://veilith-messenger.org
+  Email:    support@veilith-messenger.org
+  Security: security@veilith-messenger.org
+
+
+═══════════════════════════════════════════════════════════════
+  LICENSE
+═══════════════════════════════════════════════════════════════
+
+See docs/LICENSE.txt for licensing information.
+
+
+Built: ${BUILD_DATE}
+Version: ${VERSION}
+
+Veilith Portable - Privacy you can carry
+EOF
+
+echo -e "${GREEN}✓${NC} README created"
+echo ""
+
+# Create .gitignore for data directory
+echo -e "${YELLOW}[Safety]${NC} Creating .gitignore for sensitive data..."
+cat > "$BUNDLE_NAME/.gitignore" << 'EOF'
+# Ignore user data
+data/*.enc
+data/*.json
+temp/*
+tor/
+
+# Keep directory structure
+!data/.gitkeep
+!temp/.gitkeep
+!tor/.gitkeep
+EOF
+
+touch "$BUNDLE_NAME/data/.gitkeep"
+touch "$BUNDLE_NAME/temp/.gitkeep"
+touch "$BUNDLE_NAME/tor/.gitkeep"
+
+echo -e "${GREEN}✓${NC} Safety files created"
+echo ""
+
+# Calculate sizes
+echo -e "${YELLOW}[Summary]${NC} Bundle summary..."
+echo "━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━"
+
+if [ -f "$BUNDLE_NAME/Linux/veilith-linux" ]; then
+    LINUX_SIZE=$(du -h "$BUNDLE_NAME/Linux/veilith-linux" | cut -f1)
+    echo "  Linux:    ${LINUX_SIZE}"
+fi
+
+if [ -f "$BUNDLE_NAME/Windows/veilith.exe" ]; then
+    WINDOWS_SIZE=$(du -h "$BUNDLE_NAME/Windows/veilith.exe" | cut -f1)
+    echo "  Windows:  ${WINDOWS_SIZE}"
+fi
+
+TOTAL_SIZE=$(du -sh "$BUNDLE_NAME" | cut -f1)
+echo "  Total:    ${TOTAL_SIZE}"
+echo ""
+
+# Create distribution archives
+echo -e "${YELLOW}[Package]${NC} Creating distribution archives..."
+
+# ZIP (Windows-friendly)
+if command -v zip &> /dev/null; then
+    zip -r -q "${BUNDLE_NAME}.zip" "$BUNDLE_NAME"
+    ZIP_SIZE=$(du -h "${BUNDLE_NAME}.zip" | cut -f1)
+    echo -e "${GREEN}✓${NC} Created ${BUNDLE_NAME}.zip (${ZIP_SIZE})"
+fi
+
+# TAR.GZ (Linux-friendly)
+if command -v tar &> /dev/null; then
+    tar -czf "${BUNDLE_NAME}.tar.gz" "$BUNDLE_NAME"
+    TAR_SIZE=$(du -h "${BUNDLE_NAME}.tar.gz" | cut -f1)
+    echo -e "${GREEN}✓${NC} Created ${BUNDLE_NAME}.tar.gz (${TAR_SIZE})"
+fi
+
+echo ""
+
+# Final message
+echo -e "${GREEN}╔══════════════════════════════════════════════════════╗${NC}"
+echo -e "${GREEN}║                                                      ║${NC}"
+echo -e "${GREEN}║  BUILD COMPLETE!                                     ║${NC}"
+echo -e "${GREEN}║                                                      ║${NC}"
+echo -e "${GREEN}╚══════════════════════════════════════════════════════╝${NC}"
+echo ""
+echo "Bundle created: ${BUNDLE_NAME}/"
+echo ""
+echo "To use on USB drive:"
+echo "  1. Copy entire ${BUNDLE_NAME}/ folder to USB root"
+echo "  2. Or extract ${BUNDLE_NAME}.zip to USB drive"
+echo "  3. Run ./launcher (Linux/Mac) or launcher.bat (Windows)"
+echo ""
+echo "To distribute:"
+echo "  • Share ${BUNDLE_NAME}.zip (Windows users)"
+echo "  • Share ${BUNDLE_NAME}.tar.gz (Linux users)"
+echo ""
+echo -e "${CYAN}Veilith Portable - Privacy you can carry${NC}"
+echo ""