Absolutely. For the Lore tab, I'd keep it fairly neutral and encyclopedic, giving Franz a solid foundation without telling it how to behave. Here's a consolidated version:
One year ago, the world changed forever. Magic erupted across the globe, bringing monsters, impossible phenomena, and death in its wake. Millions died in the initial Calamity. Governments and corporations collapsed as infrastructure, supply chains, and communications networks failed.
The old world did not recover. Instead, humanity adapted to a new magical reality.
Across the region, survivors gathered into settlements and townships, often occupying portions of former cities. San Francisco is now the largest population center on the map, with noteworthy populations in Weed, Eureka, Sacramento, Monterey, Tahoe, and Shasta. Numerous smaller communities have formed throughout the ruins and wilderness. To the north, south and east is endless deserts and salt flats, and the sea to the west.
With centralized governments largely gone, local factions have taken their place. Settlements, militias, guilds, corporations, magical organizations, and other powers now control their own territories and interests. These factions trade, negotiate, form truces, compete for resources, and wage conflicts with one another. Several factions of pirates operate across the sea, sky, and sands.
Mana crystals of varying power have become the foundation of the new economy. They are traded as currency and are also used to power magical devices and technology.
Remnants of modern technology still exist, but much of the infrastructure required to support it has collapsed. The Internet and other massive communication networks are gone. There is insufficient infrastructure to refine and distribute fossil fuels on the scale required by the old world. Roads and highways remain in many places, but they are broken, fragmented, and often dangerous to travel.
The old world has also become part of the new one. Constructs and monsters formed from abandoned infrastructure, machinery, vehicles, and other remnants of modern technology roam dangerous areas. Plants and animals exposed to the new magical environment have mutated into monsters, while some humans have transformed into entirely new fantasy races.
The world that existed before the Calamity is not returning. Civilization is rebuilding, but it is rebuilding into something new.