Thanking for help

Hi All, I'm migrating from Gentoo and ArchLinux to Crux-3.3. No problem as regards installation, forced as far as KF5 frameworks, plasma-meta, and applications. Many things do work nearly well, but I do not succeed to set italian language: in Gentoo, for example, I install kde-l10n and then I choose the language through systemsettings, but in Crux I don't find the package. How to proceed? I would greatly appreciate an help. Advanced thanks. Giorgio Cittadini