Admittedly, they would still affected by the lack of power, but another option for devices with keyboard and (single line) screen are old Teletype (TTY) devices used by the deaf prior to the advent of modern smartphones. They can be picked up cheap on eBay or the like, providing a similar keyboard feel to a computer and would require no assembly on your part.

Does anyone have access to the National Academy of Science paper referenced in TFA? Are the sulfur emissions countering global warming through a global dimming mechanism?

In the case of biotech transgene injection, the introduced gene doesn't need to be from the same type of organism (e.g. an animal gene in a plant). This produces some pretty sketchy plants, IMO. Also, see the controversy over 'terminator seeds' which don't exist through artificial selection.