Is a person sinful if he allows his brother to use his device to follow news of mixed trips organized by his brother, and is that considered assisting in wrongdoing?

If mixed trips do not observe the Shariah controls and are considered sinful, it is not permissible to give a laptop to someone who uses it to follow such trips, because this constitutes cooperation in sin, in accordance with the Almighty's saying: "And cooperate in righteousness and piety, but do not cooperate in sin and aggression." However, if the trips are Islamically permissible, then there is no objection to that.