I use a Mac recently updated to Big Sur (11.6). I used the Binary Installer File for Larch and am a little stuck on what to do next. I was able to run the installer, and I have an xraylarch folder on my computer. However, I was hoping to use the XAS Viewer and do not see it within the folder. Should it be there? I had an old version of XAS Viewer I got while at APS but needed to replace that as it did not have all the modules. I did not check before removing that whether it was working on this OS. I am also not clear how to use Larch in general (i.e., the Basic Larch GUI). Do I need to install python? I see there is a python application in the folder but when I try to open that nothing happens. I’m not sure if these are issues with my OS or if I am missing something really basic about how to launch Larch. Best, Betsy Swanner