---
title: Concepts
weight: 4
---

**Quetza** concepts explain the _Why_ and _How_ behind the framework's design. These documents cover the underlying philosophy and architectural decisions.

## Key Topics

{{% cards %}}
{{< card link="architecture" title="Architecture & Philosophy" icon="scale" subtitle="Design principles: Convention over Configuration, Composition, and Isolation." >}}
{{< card link="module-system" title="The Module System" icon="template" subtitle="Understanding Clients, Modules, Controllers, and Events." >}}
{{% /cards %}}