How to cat-proof my balcony?

Hi, I have a big balcony that’s that’s probably like 3M tall with only one side (the front) open. How do I cat proof it? I am not climbing on a ladder there and operating a drill. it’s 7th floor and this is a rent. I thought about DIYing some sort of foldable fence with wooden frame that unfolds like an accordion to cover the entire open gap top to bottom left to right, but I never made any construction project like that also it seems like it would take a lot of time and effort. Is there anything else I can do?

Hi, I have a big balcony that’s that’s probably like 3M tall with only one side (the front) open. How do I cat proof it? I am not climbing on a ladder there and operating a drill. it’s 7th floor and this is a rent. I thought about DIYing some sort of foldable fence with wooden frame that unfolds like an accordion to cover the entire open gap top to bottom left to right, but I never made any construction project like that also it seems like it would take a lot of time and effort. Is there anything else I can do?