Curtain rail guide and end plug

Fits curtain rails that is 20mm x 12mm. The aqara version allows Home assistant to turn light on when curtain closes.

The rail glide guide will probably fit 9mm to 12mm gap rail, slot in sideway and twist it down. It will require supports to print. Needless to say, this will only handle curtain that is not too heavy and it will not be as easy to glide as nylon parts.