Minor improvements per Tutorial Lesson 1 development. #1186

Job	Run time
setup alpine-3.17 CC gcc	1m 16s
setup alpine-3.17 CC clang	1m 2s
tests-1 alpine-3.17 Ruby 3.1.6 CC gcc	15m 48s
tests-2 alpine-3.17 Ruby 3.1.6 CC gcc	16m 41s
tests-1 alpine-3.17 Ruby 3.2.6 CC gcc	7m 53s
tests-1-app alpine-3.17 Ruby 3.1.6 CC gcc	12m 8s
tests-2 alpine-3.17 Ruby 3.2.6 CC gcc	13m 36s
tests-1 alpine-3.17 Ruby 3.3.6 CC gcc	14m 5s
tests-1-app alpine-3.17 Ruby 3.2.6 CC gcc	4m 4s
tests-2 alpine-3.17 Ruby 3.3.6 CC gcc	20m 41s
tests-1 alpine-3.17 Ruby 3.4.1 CC gcc	14m 36s
tests-1-app alpine-3.17 Ruby 3.3.6 CC gcc	10m 26s
tests-2 alpine-3.17 Ruby 3.4.1 CC gcc	20m 13s
tests-1-app alpine-3.17 Ruby 3.4.1 CC gcc	11m 8s
tests-2 alpine-3.17 Ruby 3.1.6 CC clang	10m 3s
tests-2 alpine-3.17 Ruby 3.2.6 CC clang	8m 3s
tests-1 alpine-3.17 Ruby 3.1.6 CC clang	12m 0s
tests-1-app alpine-3.17 Ruby 3.1.6 CC clang	10m 32s
tests-1 alpine-3.17 Ruby 3.2.6 CC clang	4m 39s
tests-2 alpine-3.17 Ruby 3.3.6 CC clang	12m 44s
tests-1-app alpine-3.17 Ruby 3.2.6 CC clang	3m 25s
tests-1 alpine-3.17 Ruby 3.3.6 CC clang	9m 28s
tests-2 alpine-3.17 Ruby 3.4.1 CC clang	13m 38s
tests-1-app alpine-3.17 Ruby 3.3.6 CC clang	7m 0s
tests-1 alpine-3.17 Ruby 3.4.1 CC clang	9m 25s
tests-1-app alpine-3.17 Ruby 3.4.1 CC clang	8m 2s
test-on-alpine-latest	7s
	4h 32m 43s

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