At the start, it's impossible to complete the game using only Fulgora. Sulfuric acid is needed for blue science, and sulfur can only be obtained from a blue can.
In the vanilla game, there's a chance to obtain sulfur by recycling batteries.
Vanilla recipe - https://drive.google.com/file/d/1PbnQQF9VVTbbQtmR90kXUel-XFGL0-a7/view?usp=sharing
Krastorio 2 Spaced out recipe - https://drive.google.com/file/d/1RlzaRbqmJC4XCrTPXuiaHnYCTjTRM6dM/view?usp=sharing