In a thread on reddit, someone said that they didn't see what kind of problems the setting would present, and I thought that u/lawrencelot's response was excellent enough to save and share here:
Someone stubbed their toe but has a fear of doctors. An organization develops a robot that can replace a deceased loved one. A family of badgers have built their home under railway tracks (note: this recently happened in my country). Alien contact. Someone is mean to a racist. Trees are growing their roots through nuclear waste from the past. A package was delivered to someone's neighbour and that neighbour ordered the same thing. Clouds start forming mysterious shapes. A kid's balloon flew away. All inhabitants of a city start having nightmares of an apocalypse. Someone throws soup at a famous painting to ask attention for robot rights.
It makes me really happy to see that other people get the concept, especially because I don't pretend to have enough imagination to come up with as many ideas as this, so I'm really hoping that this game inspires others to come up with ideas like this that I can play some day.
Adding some more from a recent discord chat:
A cool investigation campaign with an emphasis on cyber skills could be delving into old world corporate research files, buried/abandoned for not being profitable enough. Perhaps looking for medical trial data or drug formulas for a rare disease.
There's also the world of legal archives, things like land ownership and water rights. The book The Water Knife by Paolo Bacigalupi was all about a near-furure scramble to claim legal ownership over a river in a perpetual-drought-plagued, fractured Untied States, using hundred year old treaty paperwork. And with the kinda scrappy, crime-based Los Vegas water knives facing off against the more cleancut CIA-style California Intelligence service in a bloody espionage campaign. It's not a solarpunk story by any means, but it's good. A cool piece of the FA background is around the very effective Land Back campaigns in the setting's history and the legal framework they used. Something like that could be a cool structure for a story campaign. Finding treaties, contracts, or other leverage in returning tribal land.
Also, and mostly unrelated to these ideas, I keep thinking about the stories I've read about goodwill employees finding fifty year old grenades, service weapons, war trophies, and other crazy stuff in boxes donated to them. I can't help but think that in a setting with a huge library economy, where a lot of stuff used is probably donated, some wild and mysterious items find their way into a drop off box.