Thanks Werner,
I actually work with and around Linux systems last 16 years and counting, but there so many things that I still learn and any specific subject like this is always a little challenge. I will give it a try with your advice.
I am building my beasement lighting system with A LOT of light sources is a 85m2 space. Since I am old and blind I need that light. And ofcource I could not just control the lights with simple switches. Instead I used a PLC so far, but now want to get seriaous and start using Linux and get all the marvellous features available with my fa