You need to use the INDI control panel as there is no relevant EKOS module.
If you use the home automation switches be sure to check they can work with DC. I was looking into a DIY solution for my observatory and the solid state relays I could find dont switch DC, only AC. These devices have a built-in web server which is easy to interface to but may use different command sets which means different drivers. You could instead use something like a eddicated Pi Zero to control all the relays you need. That could run the relevant INDI drivers and nothing else. There may even be a pre-built setup of this type somewhere on the webs. I could certainly find Arduino style solutions quite readily and regular Raspberry Pi relay hats.

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