AZ here, Get a cheap low power desktop for work shit, it will heat up less and you’ll be able to ventilate it better.
Otherwise, a/c, thermal curtains, insulated reflector layer in front of that, make sure your weather seals on your doors are good. Drink water all the time, carry water with you all the time. Good luck with all the heatwaves and welcome to the club.
People from the "hotter" regions, how do you deal with the heat?
I am from Eastern Europe and this is the hottest summer on my memory. For at least 3 consecutive years the heat is breaking all records....