feat: allow configuring home network private key #1220

Job	Run time
go-lint / lint	29s
go-unit-test / go-unit-tests	28s
go-vet / go-vet	16s
python-lint / lint-report	23s
go-sec / tests	1m 45s
rock-build / build-rock	4m 48s
integration-tests / integration-test	2m 36s
	10m 45s

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