Features:
• Inputs: 1.5 belts of Iron Ore, 0.5 belts of Copper Ore, 1 belt of Stone and Coal (one belt of Coal is enough to power the base*, smelters and produce all coal-required items); Petroleum Gas and Water (on either right or top side);
• 45 of Red, Green, Grey (Military) and Blue Sciences per minute (with circuit conditions countering the distance from the labs to insure no expensive science packs excess production);
• A (sorta spread-out) mall with all items you need early to pre-mid game including a big military wing with multiple Flamethrower Turrets/Explosive Cannon Shells factories and one Cliff Explosives factory;
• 15 Labs to fit the Lab Research Speed 2 research speed requirement;
• Only four Red Underground Belts needed at the very later stage of base building (Blue Science and Explosive Cannon Shells factories), no Red Belts needed up to that point;
• An empty 4x4 zone in the middle of the base for a Roboport to be placed later, covering up most of the chests with produced materials;
• The first half of the base is made with wooden Small Electric Poles, the second half is made with Medium Electric Poles; in the same way the first half (Red and Green Science) can work with only AM1s and yellow inserters;
• After it served it's purpose the Military Science wing (on the down right corner) can be deconstructed freeing and opening up belts with most of game's major materials which can be easily connected to mid-game portable factories (like my Early-Game Robot Factory: https://facorio-blueprints.firebaseapp.com/view/-N8yMGe222CDW9803N1g);
• Medium Electric Pole factory can be reused as a Big Electric Pole factory by just changing it's recipe;
• Steel is prioritized to go to Steel Furnace production since it's the first thing you'd want to built with it;
• Three buffer chest storages: the steel one is made just in case since steel can be very slow early game and you don't want steel factory idling at any time; the copper one is to counter a small copper shortage that will happen when both Grey and Blue science packs are being crafted (there's not a lot of researches requiring both Grey and Blue science packs so the buffer is more than enough to cover that window); the Red Circuit storage for personal later use (for personal items/to kickstart production of mid-game items);
• *At it's peak the base consumes around 15MW (the Rate Calculator will tell you that it's 30MW but in a normal playthrough you'll be gradually building the base up and not running every possible factory at once);
P.S. Based off of Nilaus' starter base design: https://youtu.be/tq98aEjge6U