Chess 960 advice

Standard chess rules for castling apply.
If you havent moved king and rook, king is not in check and doesnt go through check and between king/rook are empty squares...
You take your king and bring it on the rook with the mouse. it will castle itself. :)
But since you are not going to try, I wonder why you wanted to know!

I cant keep on with you at talking about high level chess because I never watch those games!

960 is a challenge for our schematic way of thinking . It's because players try to retrieve knowed positions and structures. We are obligated to face positions that makes our previous experience unuseful.
It's fascinating. Even a field for psychology to study how brain works and use knowledge to build new ideas.
It's interesting how stockfish plays without any prejudices nor preconceived ideas. I classify my games against it between only defeat me and humiliates me

960 is amazing for creativity, a great idea can win against a strongest player, that's the power of 960.

Yes but also making your own ideas 💡