Implement Standalone Nexus Operations #5019

Job	Run time
cloud-test	1m 48s
test-latest-deps	10m 0s
check-protos	7m 41s
features-tests / test	6m 57s
build-lint-test (3.10, ubuntu-latest)	13m 37s
build-lint-test (3.10, macos-intel)	17m 12s
build-lint-test (3.10, ubuntu-arm)	11m 2s
build-lint-test (3.14, windows-latest)	18m 36s
build-lint-test (3.10, windows-latest)	22m 7s
build-lint-test (3.14, ubuntu-latest)	16m 28s
build-lint-test (3.10, macos-arm)	8m 31s
build-lint-test (3.14, macos-intel)	19m 22s
build-lint-test (3.14, ubuntu-arm)	10m 48s
build-lint-test (3.14, macos-arm)	13m 21s
	2h 57m 30s

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