chicks.add(new Contact("Аня", "+79863132135"));
var contactList = new HashMap<String, List<Contact>>();
contactList.put("Пацы", List.of(new Contact("Петя", "+79876543210"),
new Contact("Вася", "+76541321749"),
new Contact("Саша", "+11586987442")));
contactList.put("Чики", List.of(new Contact("Марина", "+987132478"),
new Contact("Света", "+3214898744"),
new Contact("Оля", "+3216549874323")));
var chicks = contactList.get("Чики");
var dudes = contactList.get("Пацы");
@Bean
, а проперти хранить в .yaml