The fiction part would kind of keep me from doing that. And I fully believe that everything that actually is possible is already being worked on as quickly as possible.
So, maybe just pay for a whole lot of renewable energy plants all around the globe. Buy up all fossil fuel plants, demolish them and put in renewables instead.
Or fund a fully open smartphone with modular components like a PC with good specs and an optional keyboard.
I fully believe that everything that actually is possible is already being worked on as quickly as possible.
That’s either very optimistic about our level of knowledge about the universe, or a purely semantic thing where you count the precursor technology of another technology that would eventually be the major breakthrough as “already being worked on”…
For the phone, I'd like to point you to Fairphone. I'm not sure specs are the best, and I don't know about keyboard modules but other than that, it's pretty much there.