AEM: WCAG support in custom components

Hello Experts,

I am building a custom component in AEM and want to ensure that Authors are able to make this component WCAG compliant. I see the information on WCAG at 

https://docs.adobe.com/content/help/en/experience-manager-65/authoring/siteandpage/creating-accessible-content.html

However it does not mention information on what needs to be taken care in custom component. What are the different way to make custom component accessible? Or AEM takes care of accessibility? 

Thanks