nop probably a very bad idea even if you had enough iPhones and you could parallelise them, it would be 10x less electricity efficient
"The emissions from production of computing devices far exceed the emissions from operating them" [...] "the European Environmental Bureau [7] makes the scale of the problem very clear. For laptops and similar computers, manufacturing, distribution and disposal account for 52% of their Global Warming Potential [...]. For mobile phones, this is 72%. The report calculates that the lifetime of these devices should be at least 25 years" https://wimvanderbauwhede.codeberg.page/articles/frugal-comp...