Start with one: online or not

import { Schema } from 'effect'
import type { HtmlBuilder } from 'foldkit/html'
import { Bundle } from 'foldkit-bundle'
import { Online } from 'foldkit-primitives/net'

const Page = Bundle.compose({}).pipe(Bundle.withChild('net', Online))
type Model = typeof Page.Model.Type
type Message = typeof Page.Message.Type
const { placements } = Page

const config = placements.complete({
  init: () => placements.initial({}),
  update: placements.update(model => ({ model })),
  view: (model: Model, h: HtmlBuilder<Message>) =>
    h.div([], [model.net.online ? 'Online' : 'Offline']),
  subscriptions: placements.subscriptions(),
})