{
  writeTextFile,
  e11sync-static,
  backendPort ? 8002,
}:
writeTextFile {
  name = "e11sync-caddyfile";
  text = ''
    @addSlash path /static /blog /contact

    route @addSlash {
      redir {uri}/ 302
    }

    header /static/* Cache-Control "public, max-age=31536000, immutable"

    @staticRoutes path /static/* /contact/* /blog/*
    route @staticRoutes {
      header {
        Cross-Origin-Opener-Policy same-origin
        Referrer-Policy same-origin
        X-Content-Type-Options nosniff
        X-Frame-Options DENY

        -Last-Modified
      }
      file_server * {
        root ${e11sync-static}
        precompressed br gzip
      }
    }

    route {
      encode gzip
      reverse_proxy http://127.0.0.1:${toString backendPort}
    }
  '';
}