I'm redoing my bathroom, and I'll end up having 3 switches + dimmers to control the various lighting in the room: potlights, wall scones & cove lighting (all single colour, not RGBW).

I want to be able to use physical dimmer switches in a hidden location, so that I can still modify the dimming levels without an app, with the idea that there would be a single master switch in an obvious area that would trigger all the switches. While I could wire this as a master switch using the actual wires, I would like to be able to set particular lighting scenes via an app, ie: nice dim lighting for bath time.

I'm looking to have a system that:

Has minimal to no delay on the switches, so it seems like the switches are connected with copper

Supports a gradual configurable soft-on period when pressing the "master switch"

Does not have a prominent power indicator light or wifi connected light, ie: This one's glowing circle

We're gutting the bathroom, so every switch will have a neutral wire

My house is fairly small…