1) Criar app com create-react-app
2) Remover lixo next-js
3) Substituir roteamento por estados
4) Garantir carregamento de service worker: https://web.dev/service-workers-registration/

if ('serviceWorker' in navigator) {
    window.addEventListener('load', function() {
    navigator.serviceWorker.register('/service-worker.js');
    });
}