Livewire Synthesizer for Money and Currency objects from https://github.com/akaunting/laravel-money package.

CurrencySynthesizer.php

<?php

namespace App\Support\Synthesizers;

use Akaunting\Money\Currency;
use Livewire\Mechanisms\HandleComponents\Synthesizers\Synth;

class CurrencySynthesizer extends Synth
{
    public static string $key = 'currency';

    public static function match(mixed $target): bool
    {
        return $target instanceof Currency;
    }

    public function dehydrate(Currency $target): array
    {
        return [$target->getCurrency(), []];
    }

    public function hydrate(string $value): Currency
    {
        return currency($value);
    }
}

MoneySynthesizer.php

<?php

namespace App\Support\Synthesizers;

use Akaunting\Money\Money;
use Akaunting\Money\Currency;
use Livewire\Mechanisms\HandleComponents\Synthesizers\Synth;

class MoneySynthesizer extends Synth
{
    public static string $key = 'money';

    public static function match(mixed $target): bool
    {
        return $target instanceof Money ||
            (is_array($target)
                && isset($target['amount'], $target['currency'])
                && is_numeric($target['amount'])
                && $target['currency'] instanceof Currency
            );
    }

    public function dehydrate(Money|array $target): array
    {
        if ($target instanceof Money) {
            return [
                [
                    'amount' => $target->getMinorAmount(),
                    'currency' => $target->getCurrency()->getCurrency(),
                ],
                [],
            ];
        }

        return [
            [
                'amount' => $target['amount'],
                'currency' => $target['currency']->getCurrency(),
            ],
            [],
        ];
    }

    public function hydrate(array $value): Money
    {
        return money($value['amount'], $value['currency']);
    }
}