Das CASYMiR Fronten steht für Linux-Betriebssysteme auch als RPM-Repo zur Verfügung. 

Stable and Developer Release for RHEL7 / CentOS7

cat > /etc/yum.repos.d/opg.repo

[opg]
name=OPAG OPG Repo
baseurl=http://cms.opag.ch/opg_repo/3/x86_64
enabled=1
gpgcheck=0

[opg_devel]
name=OPAG OPG Developer Repo
baseurl=http://cms.opag.ch/opg_repo_devel/3/x86_64
enabled=0
gpgcheck=0

Stable and Developer Release for RHEL8 / CentOS8

cat > /etc/yum.repos.d/opg.repo

[opg]
name=OPAG OPG Repo
baseurl=http://cms.opag.ch/opg_repo/4/x86_64
enabled=1
gpgcheck=0

[opg_devel]
name=OPAG OPG Developer Repo
baseurl=http://cms.opag.ch/opg_repo_devel/4/x86_64
enabled=0
gpgcheck=0

Stable and Developer Release for RHEL9 / CentOS9 / Rocky9

cat > /etc/yum.repos.d/opg.repo

[opg]
name=OPAG OPG Repo
baseurl=http://cms.opag.ch/opg_repo/5/x86_64
enabled=1
gpgcheck=0 

[opg_devel]
name=OPAG OPG Developer Repo
baseurl=http://cms.opag.ch/opg_repo_devel/5/x86_64
enabled=0
gpgcheck=0

Installation-Command

yum install 'OptCasy*'

or

dnf install 'OptCasy*'