Source: https://www.hype-stack.dev/docs/packs-templates/templates/open-calendar

# Open Calendar

A scheduling SaaS built around a full calendar. It ships five calendar views, drag-and-drop, and working hours, plus a
marketing landing page, auth, billing, and a unified app shell. This is the `open-calendar` template, and it runs on the
[Calendar](/docs/packs-templates/packs/pack-calendar) pack.

## What's inside

- A **starter** for auth (you pick WorkOS or Better Auth at install).
- A **layout** shell (defaults to the glass layout, swappable at install).
- **Billing**, defaulting to [Stripe](/docs/packs-templates/packs/pack-billing-stripe) and swappable for
  [Lemon Squeezy](/docs/packs-templates/packs/pack-billing-lemonsqueezy) or
  [Polar](/docs/packs-templates/packs/pack-billing-polar) at install.
- A separate [admin app](/docs/packs-templates/packs/admin) from the starter, with the billing revenue widgets already
  wired in.
- [Calendar](/docs/packs-templates/packs/pack-calendar) as a fixed feature pack: five views, drag to reschedule,
  attendee invites, working hours.
- A scheduling landing page with a live calendar preview, a dashboard, and a resources hub, on the lime theme.

## What you need to set up

This template inherits its integrations from its packs, so configure those:

1. **Auth** - follow the guide for the starter you picked:
   - [SaaS Starter (Better Auth)](/docs/packs-templates/packs/starter-saas-betterauth) (default), or
   - [SaaS Starter (WorkOS)](/docs/packs-templates/packs/starter-saas-workos)
2. **Billing** - follow the page for the provider you picked: [Stripe](/docs/packs-templates/packs/pack-billing-stripe),
   [Lemon Squeezy](/docs/packs-templates/packs/pack-billing-lemonsqueezy), or
   [Polar](/docs/packs-templates/packs/pack-billing-polar). Each needs an account, a secret, plan ids, and a webhook.
3. **Admin** - set `SUPER_ADMIN_EMAIL` to sign in to the [admin app](/docs/packs-templates/packs/admin) the first time.

Postgres, Valkey, and RustFS are base services shared by every Hype Stack app.

## Why use the template instead of composing packs yourself

It pre-wires the starter, layout, billing, and the calendar pack together with the lime theme, the landing page, and the
app shell. You skip the composition step and land on a coherent scheduling product.