Hello,
The video you found is not from the lovelace card im sharing here.
I made a custom frontend from scratch with a homekit style it can be found here: https://github.com/DBuit/hass-home-remote
I don’t have a build app on github so you can’t really use it at the moment or you must be familiar with angular / ionic and programming than you can do it yourself.
I talked about this frontend before on the forum and it is hosting for my personal use but you can try it out i explained it here: Card Tools popup? (Homekit style card )
If you wanna try it out and need help let me know if you wanna host it yourself let me know i can build the application.