Mentioned this over on Bluesky but in case you're here and not there...
Every Californian with an email address and an internet connection can now visit California’s Bookshelf and access more than 300,000 ebooks and audiobooks via the Palace Project app. Linked PDF describes the program.
https://www.library.ca.gov/uploads/2025/03/pressrelease-2025-03-26-californiasbookshelf.pdf