cat > .gitignore << 'EOF'
# Python
__pycache__/
*.py[cod]
*$py.class
*.so
.Python
venv/
env/
ENV/
*.egg-info/

# Database
instance/
*.db
*.sqlite
*.sqlite3

# Uploads
app/static/uploads/*
!app/static/uploads/.gitkeep

# Environment
.env
.env.local

# Backups
backups/
*.tar
*.tar.gz

# IDE
.vscode/
.idea/
*.swp
*.swo

# OS
.DS_Store
Thumbs.db

# Logs
*.log

# Testing
.pytest_cache/
.coverage
htmlcov/

# Docker
*.tar.bak
EOF