If possible, would you consider adding a refrigerated train car?
Not sure how you could balance it in terms of consuming ice/flouroketone/power, but it would be handy for crazy large farm builds.

Also, a way to preserve things on space platforms would be so welcome. The fact we can craft quantum chips but the process of preserving perishables is beyond our understanding is actually annoying.

https://mods.factorio.com/mod/freezer
I have created a similar mod with more features, that also supports wagons.

that was a good mod. i am struggling find a options to power the container because container prototypes doesn't have any option to consume power. take the power from the equipment grid is a good idea, i will take that, will link your idea in the description.

for the refrigerated train car. does that really needed in the mega factory? I played little train stuff and instead using logistic robot a lot. in my use case, travelling through train doesn't take a long time. so do we really needed? oh, it could take some time before it fully loaded, that might be the reason?

I am thinking about adding a space craft that would allow the outside temperature to freeze the item inside, so i wouldn't bother adding another freeze train car. this mod is turning from a fridge into a cold chain lol. actually adding items in the game is not hard for me for the code. it's the graphics, i haven't really do any game development. so it was a pain adding suitable graphics for it. do you have any ideas for that?