ruby-faye-websocket binary package in Ubuntu Mantic s390x

 This is a general-purpose WebSocket implementation extracted from the Faye
 project. It provides classes for easily building WebSocket servers and clients
 in Ruby. It does not provide a server itself, but rather makes it easy to
 handle WebSocket connections within an existing Rack application. It does not
 provide any abstraction other than the standard WebSocket API.
 .
 It also provides an abstraction for handling EventSource connections, which
 are one-way connections that allow the server to push data to the client. They
 are based on streaming HTTP responses and can be easier to access via proxies
 than WebSockets.

Source package