Minor improvements per Tutorial Lesson 1 development. #1181

Job	Run time
setup alpine-3.17 CC gcc	20m 55s
setup alpine-3.17 CC clang	17m 4s
tests-1 alpine-3.17 Ruby 3.1.6 CC gcc	15m 51s
tests-2 alpine-3.17 Ruby 3.1.6 CC gcc	16m 51s
tests-1 alpine-3.17 Ruby 3.2.6 CC gcc	8m 9s
tests-1-app alpine-3.17 Ruby 3.1.6 CC gcc	11m 46s
tests-2 alpine-3.17 Ruby 3.2.6 CC gcc	13m 40s
tests-1 alpine-3.17 Ruby 3.3.6 CC gcc	14m 0s
tests-1-app alpine-3.17 Ruby 3.2.6 CC gcc	4m 21s
tests-2 alpine-3.17 Ruby 3.3.6 CC gcc	19m 56s
tests-1-app alpine-3.17 Ruby 3.3.6 CC gcc	10m 42s
tests-1 alpine-3.17 Ruby 3.4.1 CC gcc	15m 6s
tests-2 alpine-3.17 Ruby 3.4.1 CC gcc	20m 30s
tests-1-app alpine-3.17 Ruby 3.4.1 CC gcc	11m 25s
tests-1 alpine-3.17 Ruby 3.1.6 CC clang	11m 43s
tests-2 alpine-3.17 Ruby 3.1.6 CC clang	11m 9s
tests-1-app alpine-3.17 Ruby 3.1.6 CC clang	10m 50s
tests-1 alpine-3.17 Ruby 3.2.6 CC clang	4m 43s
tests-1-app alpine-3.17 Ruby 3.2.6 CC clang	3m 11s
tests-1 alpine-3.17 Ruby 3.3.6 CC clang	9m 7s
tests-1-app alpine-3.17 Ruby 3.3.6 CC clang	7m 37s
tests-1 alpine-3.17 Ruby 3.4.1 CC clang	9m 32s
tests-2 alpine-3.17 Ruby 3.2.6 CC clang	7m 40s
tests-1-app alpine-3.17 Ruby 3.4.1 CC clang	8m 0s
tests-2 alpine-3.17 Ruby 3.3.6 CC clang	12m 18s
tests-2 alpine-3.17 Ruby 3.4.1 CC clang	12m 52s
test-on-alpine-latest	13s
	5h 9m 11s

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