Thanks everyone, I've got Joplin running and syncing via WebDAV. I now think this is a better app for me that Note Station. Its doing what I need and its a much better Mac app that NS. Also I've installed the macOS Theme plugin, bonus!
I didn't have WebDAV installed on my Synology, but I think I did in the past. @dimfil what's the danger using port 5006?
I didn't have WebDAV installed on my Synology, but I think I did in the past. @dimfil what's the danger using port 5006?