runCommand -> mkDerivation with pname/version #492

Job	Run time
verify-outputs (aarch64-linux, UbuntuLatest32Cores128GArm)	56s
verify-outputs (x86_64-linux, UbuntuLatest32Cores128G)	49s
checks	1m 2s
test-modules (macos-latest)	2m 24s
verify-outputs (aarch64-darwin, macos-latest-xlarge)	1m 47s
test-modules (ubuntu-latest)	1m 26s
success	3s
publish	-1s
	8m 26s

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