How can I initialize some services with Context on startup?

[ShookLyngs]

Say I have a service, that it can be initialized with the Context object.
By default, the service is only be initialized when requests come in:

app.get('/service/id', async (c) => {
  const service = await getOrCreateService(c)
  return service.id
})

Say Hono app is running in Node.js runtime, and the service should only be initialized once per app, I wonder if it is possible to initialize the service on Hono app startup, like this (note the Context object is required for the service initialization):

app.onInit((c) => {
  await getOrCreateService(c)
})

[abegehr]

I do this in middleware and set the services on the Variables interface:

interface Variables {
  // services
  ai: AIService;
  apns: APNs;
  db: DrizzleD1Database;
  slack: Slack;

  // auth
  session: ISession | null;
}

const app = new Hono<{ Bindings, Variables }>();

// services middleware
app.use(async (c, next) => {
  c.set("ai", new AIService(c.env));
  c.set("apns", new APNs(c.env));
  c.set("db", drizzle(c.env.MY_DB));
  c.set("slack", new Slack(c.env));
  await next();
});

// some endpoint
app.get('/something, async (c) => {
  return c.var.db //…
})

Since Hono runs on stateless architecture, like Cloudflare workers, there is no onInit.