---
title: Better Fullstack Starter Packs
description: SEO-focused starter pack guides for creating SaaS apps, AI agent apps, REST APIs, Java APIs, Rust backends, mobile apps, and internal tools with Better Fullstack.
updated: 2026-05-21
category: Packs
tags:
  - starter-packs
  - fullstack
  - scaffolding
keywords:
  - app starter packs
  - fullstack starter packs
  - create saas app
  - create rest api
  - create ai agent app
---

Starter packs are opinionated paths through Better Fullstack. Use them when you know the product outcome you want before you know every library choice.

Each pack explains what to create, which stack it uses, how to generate it, and what to change first after scaffolding.

## Choose a pack

<StarterPackHub />

## When to use a pack

Use a pack when you want a strong default and a working project quickly. After generation, the Stack Builder still lets you adjust framework, database, auth, API, deployment, and tooling choices.

If you already know the exact stack, use the [Stack Builder](/new?view=presets) or a stack-specific guide instead.

## Pack selection notes

- Choose the SaaS pack when billing, auth, and email are part of the first product version.
- Choose the AI Agent App pack when agent instructions, MCP, and app code need to evolve together.
- Choose the REST API, Java API, or Rust Backend packs when the product starts as a service boundary.
- Choose the Mobile App pack when the device experience matters before backend architecture.
- Choose the Internal Tool pack when CRUD workflows, dashboards, and authenticated operations are the product.