I designed a case to install an 80mm fan and an SSD. With active cooling, the temperature can be reduced significantly.
The air flows out from under the entire underside to the rear through the cooling fins.
The Cable you need to connect the fan to the ZimaBlade: https://s.click.aliexpress.com/e/_EwJe937
Fan Mount (included Fanscrews are also working): https://s.click.aliexpress.com/e/_Eznqe97
Cheap 80mm Fan (but I prefer Noctua): https://s.click.aliexpress.com/e/_ExeEDR3
The author marked this model as their own original creation.