# Customising Fractal

Fractal offers a number of ways to extend its functionality.

Template engine adapters let you use pretty much any JavaScript-based templating library instead of Handlebars, and theme customisation can give you a web UI completely tailored to the needs of your project.

You can also use custom CLI commands to create command-line tasks that lean on the power of Fractal's API to better integrate your component library into your development workflow.