Unable to install on OpenBSD 7.3

[dani0854]

Installation yields an error

# bash install-release.sh
+ main
+ identify_the_operating_system_and_architecture
++ uname
+ [[ OpenBSD == \O\p\e\n\B\S\D ]]
+ case "$(arch -s)" in
++ arch -s
+ BIT=64
+ judgment_parameters
+ [[ 0 -gt 0 ]]
install-release.sh: line 401: HELP: unbound variable

I don't see where HELP should be set on installation, so either it needs a default or remove u option at the top.

P.S. Also, is this repo alive? If so, I can make PR trying to fix it.