This is my 4th attempt, the best so far. Cycle 277 reached, pretty young colony, i could say. Going strong with 15 dupes. The only problem at this moment is pure water production. I ve built a pretty big steam room near magma, but in the same time Im forced to use some sand for purifier because i cant keep up with the consumption rate (and im using a lot of valves to reduce it, but still ...).
This is the overview:
North part, with water tanks(the one in the left is directly connected to the steam chamber) and coal generators. I send the produced carbon dioxide to all my plant rooms in case of chilling.
East part, with 2 of my 3 plant rooms, completely sealed from the rest of my colony.
South part, allocated to storages and batteries. Im planning to expand this one..
West part, with an emergency water tank from the start, a contaminated water tank waiting to be boiled, and the "contaminated oxygen to pure oxygen" room. Im using just one thermoregulator and looping the gas in it untill -190°C.
10/10 Would build again.
Im waiting for the upcoming update.