Hey there,
Not sure if you are interested, but I cloned this and made a copy then made the adjustments necessary to work with 2021.5f1 by splitting things up with appropriate asmdefs to allow gaining access to the, now internal, CollectionHelper.CheckIsUnmanaged<T>(), updating the packages, etc.
If so, let me know and I can try to do a PR with it.

Thanks,
-MH
Hey there,
Not sure if you are interested, but I cloned this and made a copy then made the adjustments necessary to work with 2021.5f1 by splitting things up with appropriate asmdefs to allow gaining access to the, now internal,
CollectionHelper.CheckIsUnmanaged<T>(), updating the packages, etc.If so, let me know and I can try to do a PR with it.
Thanks,
-MH