# SE-0271: Package Manager Resources

**URL:** <https://forums.swift.org/t/se-0271-package-manager-resources/30730>\
**Category:** Proposal Reviews\
**Tags:** packagemanager\
**Created:** [November 12, 2019, 11:26pm UTC](https://forums.swift.org/t/se-0271-package-manager-resources/30730 "2019-11-12T23:26:40Z")\
**Posts on this page:** 1\
**Showing post:** 39

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**Author:** ![NeoNacho](https://sea2.discourse-cdn.com/swift/user_avatar/forums.swift.org/neonacho/32/1368_2.png) [@NeoNacho](https://forums.swift.org/u/NeoNacho)\
**Post date:** [November 13, 2019, 6:20pm UTC](https://forums.swift.org/t/se-0271-package-manager-resources/30730/39 "2019-11-13T18:20:43Z")

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You're not missing anything, I don't think we were aware of the custom `CIKernel` feature. From the documentation, it sounds like in Xcode today, you have to do this partially via run script phases, is that correct? If that's the case, it sounds as if this would be something that potentially needs the extensible build tools feature pitched [here](https://forums.swift.org/t/package-manager-extensible-build-tools/10900).

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