If I create a simple Xcode application (eg a SwiftUI app) and then import my Swift package as a dependency, then the resulting application can be profiled. I noticed that none of the features in Xcode for doing build settings are available in pure Swift Packages, so perhaps that is why.

Hi Kacper, thanks for reply. So running the above: % codesign -dvvv --entitlements=- .build/arm64-apple-macosx/release/perftool Executable=/Users/adrianm/Projects/soapybasic/SoapyBasicLib/.build/arm64-apple-macosx/release/perftool Identifier=perftool Format=Mach-O thin (arm64) CodeDirectory v=20400 size=6561 flags=0x20002(adhoc,linker-signed) hashes=202+0 location=embedded Hash type=sha256 size=32 CandidateCDHash sha256=dd4650a99e52e98e224350b0150293e990b96418 CandidateCDHashFull sha256=dd4650a99e52e98e224350b0150293e990b9641817aa23d58dad7899a62adc33 Hash choices=sha256 CMSDigest=dd4650a99e52e98e224350b0150293e990b9641817aa23d58dad7899a62adc33 CMSDigestType=2 CDHash=dd4650a99e52e98e224350b0150293e990b96418 Signature=adhoc Info.plist=not bound TeamIdentifier=not set Sealed Resources=none Internal requirements=none I tested this on a simple Swift Xcode project and I get the entitlements in the plist and can Instrument the app. But that's an app, not a package managed by Swift Package Manager. Perhaps that is the key difference. Need to figure out how to sign a Swift Package?