tf5 binary package in Ubuntu Focal s390x

 TinyFugue is a text-based, line-based client designed for connecting to
 most flavors of MU* servers (TinyMUSH, TinyMUX, LP, Diku, etc.) or any
 telnet-based chatserver. It includes support for 256-color terminals,
 MCCP versions 1 and 2, a powerful trigger and scripting language, and
 many other features. Encryption of communications with SSL/TLS is
 supported, but not validation of certificates. Unicode is not currently
 supported.
 .
 This package is the current development version of TinyFugue (major
 version 5). For the current stable version (major version 4), install
 the "tf" package instead.

Source package