Getting JACK to work with non-Flatpak Reaper...?

[PrinceCPH]

I'm "Solution"-closing this thread & referring the issue to a new one:

Flatpak or & non-Flatpak Reaper with MIDI / PipeWire?

OK, so I'm creating a new thread as a follow-up on the one linked below, since it seems I'm not trying to get JACK to work, but rather PipeWire "pretending" to be JACK (pipewire-jack, I think?). Also, I've discovered sticking to Flatpak has its advantages, if possible - sources say it's hard to get Yabridge to work with it (and that it's generally hell on DAWs) but I can't be the first to have a go I found out that installing Reaper with the included .sh script yields a Yabridge-enabled…