Ok so I think way to much so this idea may be just a mental exercise.
I am putting this fridge in my build.
https://www.walmart.com/ip/Hisense-1-6- ... /650752623
The "freezer" area is next to useless so......
What if I got a aluminum box that would fit the entire freezer area and plumbed two 1/2 or 3/8 lines out of the box then ran them through the side of the fridge.
Then take 3 or 4 ft of copper line (1/4 inch) and coil it around in about a 3 inch loop and put that loop inside of 4 inch PVC and plumb it all together with an in line pump to circulate and a high side bleeder valve and a low end fill valve and fill the system with 1 part rubbing alcohol 2 parts water.
Put a quality computer fan on one end of the 4 inch pipe to push air through.
This 4 inch pipe can be placed in the living space. Initially I was thinking draw air from outside but might work better recycling the air inside the living space.
Only issue I can see is would need to kerf Inside the pipe and plumb for condensation removal.
I told you it was outside the box lol.
Any thoughts?