Construction bots are pushed earlier in red science, though getting there might be about the same challenge as the whole of vanilla ! Though I would recommend

Construction bots are pushed earlier in red science, though getting there might be about the same challenge as the whole of vanilla ! Though I would recommend using at least Picker Extended for its semi-automatic filling of placed blueprints. https://mods.factorio.com/mod/PickerExtended https://mods.factorio.com/mod/PickerExtended