Architecture and the used reactivity mechanics are different things. You need architecture to avoid a big ball of mud or spaghetti code. Organising your code i

Architecture and the used reactivity mechanics are different things. You need architecture to avoid a big ball of mud or spaghetti code. Organising your code in layers, modules, each with its own API. Rules which layer can access what other layer. Like backend does for ages. You can and should do this in large frontend SPAs as well. No matter if written Svelte, Angular or React.