server {
    listen 80;
    server_name _;
    root /usr/share/nginx/html;
    index index.html;

    # Gzip compression
    gzip on;
    gzip_types text/plain text/css application/javascript application/json image/svg+xml;
    gzip_min_length 256;

    # Static assets caching
    location ~* \.(css|js|png|jpg|jpeg|gif|ico|svg|woff2|ttf)$ {
        expires 7d;
        add_header Cache-Control "public, no-transform";
    }

    location / {
        try_files $uri $uri/ =404;
    }

    # Each subdirectory serves its page
    location ~ ^/([^/]+)/ {
        try_files $uri $uri/ /$1/index.html;
    }
}