@astrojuanlu it is also designed to work in a half-capable way with no APIs at all.. it will still completely serve the outbox and the activities (create) for all the posts.

Only thing it cant really do properly without the serverless functions is allow you to get confirmation once you follow someone, and therefore might miss notification to your feed on new posts

But the site will still be searchable by the fedi and you can see see and share posts in that limited mode.