Hubitat and Tasker

Hubitat is the only officially supported dashboard that runs locally. In the early goings, I used a ported version of a SmartThings app called SmartTiles (now known as ActionTiles). That was more than a year ago so I don't know if it would still work on current firmware. You would also need to have a copy of the app code already. The developer took down the code and does not allow sharing of it. However if you already have it you can use it with a few modifications.

See this thread

Edit : I forgot there is also a dashboard called HousePanel but I'm not sure if it is completely local. @kewashi can chime in on that.