Streamline Card

Streamline Card is a dashboard card that builds Lovelace cards from reusable templates. A template is defined once and reused in many places, so a change to the template updates every card that uses it. Variables customize each use of a template, and default values can be set for variables that are left out. Keys ending in a JavaScript suffix are evaluated as code with access to states, the current user, template variables and areas. Templates can be set up through YAML files or through the dashboard interface. It is an adaptation of decluttering-card, which is no longer maintained, and it is installed through the Marketplace or manually.