Javier,

You do not need to build the driver it can be selected in the Ekos profile editor.
In case you have not seen it: github.com/indilib/indi-3rdparty/blob/ma...no/doc/rolloffino.md

You mention already having a motor. Perhaps you have a roof already working using a garage door or gate opener controller? If so then it is usually just a case of connecting into the existing controller via relay or relays. The rolloffino driver relies on an Arduino to provde that kind of control.
Parts needed when working with an existing garage or gate controller, chosen to work with an existing Arduino code example: An Arduino Uno, and a relay shield for it. Switches that get activated when the roof reaches opened or closed. Let us know what you have & we can get specific. You will need to install the V2 Arduino IDE to download the sketch.

/Tom

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