check unused repository in hacs?
It looks like there’s an activity that shows when it might be last used but I don’t think it’s accurate
I know that these two entities are used in my layouts right now
Is there any reliable way to see what is being used and what I can delete
That column is activity by the developer, not activity by you or your system. It is an indication of how stable a 3rd party integration is, or alternatively how likely it is to have been abandoned.
Sure, check your configuration.
Sure of course if it’s used somewhere in the configuration. How do I do that without reading every single file in explorer? I don’t even know what I’m supposed to be looking for
That is not your configuration those are your third party resource files.
I’ll give you an example using the state switch card.
Looking at it’s documentation all cards have the following in them:
type: custom:state-switch
So that is what you search for.