mythtv-backend binary package in Ubuntu Focal riscv64

 MythTV provides a unified graphical interface for recording and viewing
 television programs. Refer to the mythtv package for more information.
 .
 This package contains only the server software, which provides video and
 audio capture and encoding services. In order to be useful, it requires a
 mythtv-frontend installation, either on the same system or one reachable
 via the network.
 .
 A database is also required. The mythtv-database package must be installed,
 either on the same system, or one reachable via the network.
 .
 For a complete installation of all MythTV components, install the 'mythtv'
 package.

Source package