Linuxulator
I use it for HashBackup, R7 office, and Master PDF Editor.
Enable the Linux ABI:
# sysrc linux_enable="YES"
and start it:
# service linux start
To run HashBackup it is enough to install the Rocky Linux Base System:
# pkg install linux_base-rl9
Install the R7 office:
pkg install linux-r7-office
To install the Master PDF Editor, first install all Rocky Linux 9 packets (though of course not all of them are required) via the meta-package:
# pkg install linux-rl9