I offer 2 types of electric generator for further use with electrical equipment (illumination, protection, etc.): chemical and mechanical. Chemical (produces a little energy and eventually irretrievably fails) is collected from acid (apple or ant), a container (like an ant egg) and metal contacts (by then it may be possible to tear off a piece of copper wire in the shed). Mechanical (generates more energy, but constantly requires fuel) is assembled from acorns, stems, lubricating fluid and is a wheel into which you launch tamed insects that need to be constantly fed.

Although crafting should be in several stages: first, separate parts of the generator are crafted, and then the electricity generator itself is assembled from them.

great idea, this would be a game changer.