Rocky 9.x gnucash

Installation

Enable Additional Repositories - Some Perl modules are not packaged in EPEL or AppStream for Rocky Linux 9. You may need to enable the CRB (CodeReady Builder) repository, which contains many development and Perl module packages:
```
sudo dnf config-manager --set-enabled crb
sudo dnf makecache
```
Attempt to Install Missing Perl Modules - Try installing the missing Perl modules using DNF:
```
sudo dnf install perl-Readonly perl-IO-String perl-HTML-Tree perl-DateTime-Format-Strptime
```
If any of these packages are missing, proceed to the next step.
(Optional - Based on missing packages in previous command) Install Perl Modules via CPAN. If the modules are not available via DNF, you can install them using CPAN, the Perl package manager:
```
sudo dnf install perl-CPAN
sudo cpan Readonly IO::String HTML::TreeBuilder DateTime::Format::Strptime
```
This will download and build the required modules from source
Try GnuCash Installation. After installing the dependencies, try installing GnuCash:
```
sudo dnf install gnucash -y
```

There is older article at Gnucash