Coop help

First time building a coop/run. First time owning chickens.

We have 6 chicks that I’m working on getting a home finished up for.

The run is nearly finished (150sq) partially shaded and partially open air. The coop itself is closer to 50sq (5x8ish with sloped ceiling). You can see the man door access on the left side.

Concerned about ventilation in the Midwest during the summer. The coop portion is insulated but not currently ventilated beyond the coop/run door that would be closed in the evening anyways.What’s appropriate here? Do I need a powered fan to push fresh air in?

Do I cut some passive vents in the wall? Not willing to cut into the roof but walls are fair game.

We’re relatively humid at times and the temp can exceed 90f at times.They’ll have access to fresh air and shade during the days.

Any advice is greatly appreciated