allow custom username (#2132) #16

Job	Run time
bookworm / build	11m 8s
bullseye / build	10m 41s
bullseye / test (run_install_common.sh)	14m 24s
bullseye / test (run_install_faststartup.sh)	9m 45s
bullseye / test (run_install_webapp_local.sh)	15m 13s
bullseye / test (run_install_webapp_download.sh)	15m 33s
bookworm / test (run_install_common.sh)	14m 11s
bookworm / test (run_install_faststartup.sh)	9m 47s
bookworm / test (run_install_webapp_local.sh)	14m 2s
bookworm / test (run_install_webapp_download.sh)	14m 57s
bookworm / cleanup	2s
bullseye / cleanup	2s
	2h 9m 45s

Provide feedback