---
title: "Best practises and conventions"
manual: "TYPO3 Explained"
version: "12.4"
permalink: "https://docs.typo3.org/permalink/t3coreapi:extension-best-practises@12.4"
source: "ExtensionArchitecture/BestPractises/Index.rst"
rendered: "2026-10-21T15:29:37+00:00"
---

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<a id="extension-conventions"></a>

# Best practises and conventions {#extension-best-practises}

-   [Extension Key](https://docs.typo3.org/permalink/t3coreapi:choosing-an-extension-key@12.4)
-   [Naming](https://docs.typo3.org/permalink/t3coreapi:naming-conventions@12.4)
-   [Configuration Files](https://docs.typo3.org/permalink/t3coreapi:configuration-files-ext-tables-php-ext-localconf-php@12.4)
-   [Software design](https://docs.typo3.org/permalink/t3coreapi:software-design-principles@12.4)
-   [Loading order](https://docs.typo3.org/permalink/t3coreapi:extension-loading-order-1@12.4)