I think the use cases for running in background indefinitely are so few that it's better to build special purpose APIs rather than general processing on low pow

I think the use cases for running in background indefinitely are so few that it's better to build special purpose APIs rather than general processing on low power cores with caps. The settings page would help but I think it is too complex for the average user to think about. Mobile phones are not PCs and we shouldn't be striving to make them more PC like, even if we can do so under mobile power constraints.