arch linux: how to use pipewire-jack / jack

[kootenpv]

When I try to use pipewire-jack (as elsewhere suggested), the server script gives the error that jackd is not installed.

Server Errors
-------------
**/home/pascal/.sonic-pi/log/server-errors.log**
sh: line 1: exec: jackd: not found

When instead I use yay -S jack2 (forcing the removal of pipewire-jack), then it complains that jack server is not running.

Can anyone give me a clue how to get any of the 2 working (and maybe a recommendation between whether to use jack2/jack or pipewire-jack)?