Solaar appears to be available through the Fedora package manager. Among other reasons, using the package manager is preferred because it gives you a mechanism to remove it cleanly, including any system changes such as the udev rule

https://packages.fedoraproject.org/pkgs/solaar/solaar/

I’m not a Fedora user myself, but I suppose if you open the terminal and run

sudo dnf install solaar

This would install both solaar and the udev rule.

‘Rolling your own…’ is a comparison to rolling your own cigarettes. That is, creating your own version from scratch instead of using something ready-made.