# Core Concepts

Get up and running with Flexi in just a few minutes. These quick videos walk you through everything you need to start building fast, flexible Shopify storefronts with Flexi.

### 1. Enable App Embed

The Flexi app embed loads the global styles needed for your sections and blocks to render correctly. In this video, you’ll learn how to enable it in your theme settings — a quick but essential step.

{% embed url="https://www.youtube.com/embed/2Cqj8TPuMAc?si=HcWA243kI0NMZ_QB" %}

### 2. Adding Flexi Sections

Learn how to browse Flexi’s section library, add a section to your Shopify theme, and start customizing it in the theme editor.&#x20;

{% embed url="https://www.youtube.com/embed/XdhWIHk1vpM?si=tc5CARfsVynq1gEU" %}

Every Flexi section is made up of four layers: Sections hold the overall component, Layouts define structure, Groups organize related content, and Blocks are the individual elements like text, images, and buttons. This modular system makes it easy to build flexible, scalable storefronts without clutter.

### 3. Using Flexi Blocks

Flexi blocks make it easy to enhance your product pages with custom content — without writing code. This video shows you how to add app blocks directly to your product templates and keep them update-safe.

{% embed url="https://www.youtube.com/embed/gqCaaYKbpPM?si=yQSv--WoAybD3ZPw" %}

### Flexi Quick Start

Follow the quick start guide above to get started.&#x20;
