How to replicate light brightness functionality for volume

After seeing the new updates to homeassistant in the ui department i noticed the new card with multiple buttons which can be used to control the power for appliances which have power settings or the brightness of lights and i was wondering if there is any way to replicate the same thing for volume control. I run snapcast in my house and have the singular volumes of the clients but I wanted to make a card which had the controls for that room and the volume for the speakers in that room.
This is an example of what i want to make that I found online but I couldn’t find a way to connect the slider for the volume of the client
Screenshot_20241003_172321

At present, I believe this is only possible using the custom frontend component Custom Features for Home Assistant Cards.

I use this alot, and it works well. The developer, Nerwyn, is very active.

There is a discussion thread too, which the developer regularly responds on.

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