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

    # SPA / static Needle export
    location / {
        try_files $uri $uri/ /index.html;
    }

    # wasm / glb / long cache for hashed assets (optional)
    location ~* \.(wasm|glb|png|jpg|jpeg|webp|ico|svg)$ {
        try_files $uri =404;
        add_header Cache-Control "public, max-age=31536000, immutable";
    }

    gzip on;
    gzip_types text/css application/javascript application/json image/svg+xml;
}