Hello standalone activity #1094

Job	Run time
build-lint-test (3.10, windows-latest)	6m 52s
build-lint-test (3.10, macos-intel)	6m 59s
build-lint-test (3.14, windows-latest)	9m 47s
build-lint-test (3.10, macos-arm)	6m 49s
build-lint-test (3.14, ubuntu-latest)	9m 49s
build-lint-test (3.14, macos-intel)	9m 55s
build-lint-test (3.14, macos-arm)	9m 32s
build-lint-test (3.10, ubuntu-latest)	5m 48s
	1h 5m 31s

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