server {
    listen 8080 http2;
    listen 8080 quic reuseport;
    http3_max_concurrent_streams 128;

    root /usr/share/nginx/html;
    index index.html;

    server_name colinknapp.com www.colinknapp.com;

    # Security headers
    add_header X-Frame-Options "DENY" always;
    add_header X-Content-Type-Options "nosniff" always;
    add_header Referrer-Policy "no-referrer" always;
    add_header Permissions-Policy "geolocation=(), microphone=(), camera=(), payment=()" always;

    # Content Security Policy (CSP) tailored for colinknapp.com without nonce
    add_header Content-Security-Policy "
        default-src 'self';
        script-src 'self' https://matomo.nixc.us/js/tracker.js https://colinknapp.com/scripts/some-script.js;
        style-src 'self' 'unsafe-inline' https://colinknapp.com/styles/main.css;
        img-src 'self' https://colinknapp.com/icons data:;
        connect-src 'self' https://matomo.nixc.us;
        font-src 'self' fonts.gstatic.com;
        base-uri 'self';
        form-action 'self';
    ";

    # Enable long-term caching for JavaScript, CSS, and HTML files
    location ~* \.(js|css|html)$ {
        expires 1y;
        add_header Cache-Control "public, max-age=31536000, immutable";
    }

    # Rate limiting to prevent abuse
    limit_req_zone $binary_remote_addr zone=default:10m rate=20r/s;
    limit_req_status 429;

    location / {
        limit_req zone=default burst=30;
        try_files $uri $uri/ =404;
    }

    # HTTP/3 advertisement header
    add_header Alt-Svc 'h3-29=":8080"; ma=86400';
}