Split off core API and functionality into a SciMLSensitivityCore package
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Is your feature request related to a problem? Please describe.
SciMLSensitivity.jl depens on various AD packages such as Zygote and Enzyme that pull in a lot of stuff and frequently break on Julia nightly versions.
We depend on SciMLSensitivity.jl to create a sensitivity problem, but use Diffractor for our AD needs.
We frequently run into long precompile times and trouble upgrading our Julia nightly version due to a large number of dependencies that we don't actually use.
Describe the solution you’d like
A SciMLSensitivityCore package that allows us to make a sensitivity problem without depending on AD systems we don't use.
Describe alternatives you’ve considered
A package extension would be another alternative to gate the AD functionality behind the availability of their respective package, but my understanding is that this would require a breaking API change.
Additional context
Happy to help but not super familiar with the code base and don't have the required privileges to make and publish such a package.
This doesn't make sense. The pieces that you are talking about removing are part of the core.