Wasabi allows you to use the application with an RPC interface for command line users instead of a GUI interface.

'Pay in Coinjoin' is an exclusive feature for RPC users that allows you to send funds to the final destination address directly in a coinjoin transaction instead of performing the coinjoin and payment across 2 separate transactions: https://docs.wasabiwallet.io/using-wasabi/RPC.html#payincoinjoin