There's 500 millions iPads on the planet, half of them sold before 2015, 22 different models. That's a lot of computers that need/will need repurposing at some point. Given the explosion in production in this kind of electronics this past decade, it might be interesting to target this kind of system :) Also includes old android tablets and phones!
@electret One of the things I say to IRL people that ask me how to learn to operate small servers, or host their own website, is that they don't need Raspis or VPSs. Just use an old phone!
Jailbreaking iOS devices gives them a few more functionalities, but I agree with you that, especially with Apple devices, there should be more options!
Know of any interesting projects?
Merveilles is a community project aimed at the establishment of new ways of speaking, seeing and organizing information — A culture that seeks augmentation through the arts of engineering and design. A warm welcome to any like-minded people who feel these ideals resonate with them.