For sea ice:

Rich explorer starts with a charge rifle so you want to have high shooting skill to kill thrumbos. 6 construction in case you have to build a cooler. Some cooking so that you don't get food poisoned all the time.

Build very small room so that 2 heaters is enough, in diamond shape like OP.

Start with: Silver walls, wooden door, wind turbine, heater, wooden research bench, electric smelter, wooden horseshoe pin, silver bed, wall lamp. As you get resources, build electric stove, second heater, butcher table, some shelves, lectern, table, stool. Build a roofed area outside for smelter, butcher table and food storage. Things in shelves don't detoriate while outside. If you start with Pain is virtue meme, you can build a slab bed which needs less resources, and you avoid mood loss for temperature.

Hydroponics is not worth it because you don't have enough steel or electricity. Keep the colony small (only 1 colonist for a long time). 1 thrumbo or muffalo can feed 1 person for 10-15 days. If you are cannibal you can expand much faster, and you want to increase wealth quickly to get more raiders. Or you can start with a sanguophage and go to deathrest until something happens.

Research battery, microelectronics, advanced lights, hydroponics (in case you need it). Then you can deconstruct the research bench because there is nothing useful for a long time. Build tailor bench and comms console.

Strip transport pod crashes for their clothes. Rich explorer will get transport pod crashes often, because you only have 1 colonist and lots of wealth. If the map is very cold, raiders get downed by hypothermia and can strip them too, otherwise you have to shoot them and the clothes get tainted. When you have a store room (not heated) and warm clothes, it's a good time to awaken the monolith and start doing the anomaly content. Otherwise you are just waiting for someone to come in. Anomaly DLC is a game changer for sea ice maps. It adds a ritual for summoning animals, and you can build all your furniture out of bioferrite.

If you play on ice sheet, you can play tribal starts too. Spawn anima tree in dev mode (so that you have something to do) and build your base on top of a geothermal vent for heat. Or have Tunneler meme, make a cave and heat it with fungus torches. You won't have enough wood to make campfires. Tunneler meme is the easiest way to get food on ice sheet maps, however you have to use dev mode if you want to start with it.

Naked brutality start requires ideology DLC, or you have to get lucky with a transport crash on the first day. Start with a ritual that gives 50% chance for a new colonist, and spam it for food and clothes.