Webserver/next.config.ts

import type { NextConfig } from "next";

const isDev = process.env.NODE_ENV === "development";
const contentSecurityPolicy = [
  "default-src 'self'",
  `script-src 'self' 'unsafe-inline'${isDev ? " 'unsafe-eval'" : ""}`,
  "style-src 'self' 'unsafe-inline'",
  "img-src 'self' blob: data:",
  "font-src 'self' data:",
  "connect-src 'self'",
  "object-src 'none'",
  "frame-src 'none'",
  "frame-ancestors 'none'",
  "form-action 'self'",
  "base-uri 'self'",
  "upgrade-insecure-requests",
].join("; ");

const nextConfig: NextConfig = {
  output: "standalone",
  poweredByHeader: false,
  serverExternalPackages: ['better-sqlite3'],
  headers: async () => {
    return [
      {
        source: '/:path*',
        headers: [
          {
            key: 'X-Frame-Options',
            value: 'DENY',
          },
          {
            key: 'Content-Security-Policy',
            value: contentSecurityPolicy,
          },
          {
            key: 'X-Content-Type-Options',
            value: 'nosniff',
          },
          {
            key: 'Referrer-Policy',
            value: 'strict-origin-when-cross-origin',
          },
          {
            key: 'Permissions-Policy',
            value: 'camera=(), microphone=(), geolocation=(), interest-cohort=()',
          },
          {
            key: 'Cross-Origin-Opener-Policy',
            value: 'same-origin',
          },
          {
            key: 'X-DNS-Prefetch-Control',
            value: 'off',
          },
        ],
      },
    ];
  },
};

export default nextConfig;