Hi Ivan, Would you provide the zip version for Molot fonts? Fedora does not use rar files by default due to licensing issue: https://fedoraproject.org/wiki/Licensing:Unrar
You can also include the metainfo.xml I provided you which will be useful for easy installation.
P.S.: I ccd to the Fedora Fonts Special Interest Group should you look for further information.
Thank you in advance.