Oh super I did not realize they have a linux version of Organteq, I will definitely have to try that. I've used Grand Orgue so far and that works quite well, but I am a very happy user of Pianoteq (you can guess what that does) and Modartt has definitely raised the bar there, so I'm curious what they can do with Organs (arguably: easier to model in theory but probably a lot harder in practice).