Is your LocalWP crashing (service unavailable) when using dns_get_record? Try this;

dns_get_record_polyfill.php

<?php 
/**
 * @file: a polyfill that replaces the stock dns_get_record, use in conjunction with 
 *  disable_functions = dns_get_record
 * in php.ini.hbs .
 */

// PHP 7 ignores the disable_functions directive.
if ( ! function_exists( 'dns_get_record' ) && version_compare( phpversion(), '8', '>=' ) ) {
	/**
	 * A version of dns_get_record that does NOT crash on local, and is more secure as it uses DNS over HTTPS via Cloudflare.
	 * @param string $hostname the hostname to lookup.
	 * @param int    $type     the record type to lookup. Uses the PHP Default DNS_* constants, see \dns_get_record().
	 */
	function dns_get_record( $hostname, $type = DNS_ANY ) {
		$php_to_cf_type   = [
			DNS_A     => 'A',
			DNS_AAAA  => 'AAAA',
			DNS_CNAME => 'CNAME',
			DNS_MX    => 'MX',
			DNS_NS    => 'NS',
			DNS_PTR   => 'PTR',
			DNS_SOA   => 'SOA',
			DNS_TXT   => 'TXT',
		];
		$cf_numeric_types = [
			1  => 'A',
			2  => 'NS',
			5  => 'CNAME',
			6  => 'SOA',
			12 => 'PTR',
			15 => 'MX',
			16 => 'TXT',
			28 => 'AAAA',
		];
		$cf_type          = $php_to_cf_type[ $type ] ?? 'ANY';

		$ch = curl_init();
		curl_setopt( $ch, CURLOPT_URL, 'https://cloudflare-dns.com/dns-query?name=' . $hostname . '&type=' . $cf_type );
		curl_setopt( $ch, CURLOPT_RETURNTRANSFER, true );
		curl_setopt( $ch, CURLOPT_TIMEOUT, 5 );
		curl_setopt( $ch, CURLOPT_HTTPHEADER, [
			'accept: application/dns-json',
			'referer: https://cloudflare-dns.com/dns-query',
		] );
		$result = curl_exec( $ch );
		if ( curl_errno( $ch ) ) {
			curl_close( $ch );

			return [];
		}
		curl_close( $ch );
		if ( ! $result ) {
			return [];
		}
		$result = json_decode( $result, true );
		if ( ! $result ) {
			return [];
		}
		$answer = $result['Answer'] ?? [];
		if ( ! $answer ) {
			return [];
		}
		$return = array();
		foreach ( $answer as $entry ) {
			$entry          = array_change_key_case( $entry, CASE_LOWER );
			$return_type    = $entry['type'] ?? 0;
			$request_type   = $php_to_cf_type[ $type ] ?? 'UNKNOWN';
			$return_type    = $cf_numeric_types[ $return_type ] ?? $request_type;
			$entry['type']  = $return_type;
			$entry['ttl']   = $entry['TTL'] ?? 0;
			$entry['class'] = $entry['class'] ?? 'IN';
			$entry['host']  = $entry['name'] ?? $hostname;
			$ip             = $entry['data'] ?? '';
			if ( filter_var( $ip, FILTER_VALIDATE_IP, FILTER_FLAG_IPV6 ) ) {
				$entry['ipv6'] = $ip;
			} else {
				$entry['ip'] = $ip;
			}
			$entry[ strtolower( $return_type ) ] = trim( $entry['data'] ?? '', '" ' );

			$return[] = $entry;
		}

		return $return;
	}
}

# Require the file that LocalWP uses with `auto_prepend_file`. Adjust for Linux/Windows by checking a php.ini 
# file you already have on your system.
require_once( '/Applications/Local.app/Contents/Resources/extraResources/local-bootstrap.php' );

LocalWP crash on dns_get_record fix

# changes-to--php.ini.hbs
...
disable_functions = dns_get_record
...
auto_prepend_file = /path/to/the/dns_get_record_polyfill.php
...

Please note; this does NOT work with php 7.

PHP 8 truly removes the dns_get_record function from memory (or rather, doesn't load it) when disabled.

PHP 7 only prevents execution.

Thus, the code is adjusted to not function on php 7. You will get errors when trying to access dns_get_record, but at least it will no longer crash without telling you why ;)