Just an FYI for mac users: Universal Control is a native macOS alternative to barrier that's about to debut with macOS 12.3 (currently in beta). As an ex-synergy user, let me just say how awesome the implementation is. What's crazy is you can share your mouse and keyboard not only between two or more macs but also between your mac and an iPad (if you have one, obviously). And the latency is crazy unnoticably low (even over wifi).
I ask because the best use I had for Synergy was around 20 years ago: one Linux desktop (my daily driver) and other ones for non Linux applications (or ones I didn't want to pollute my system with).
Over the years I've used it for Outlook (connecting to Exchange), Lotus Notes, Xcode, Adobe tools, etc.
I've noticed that this doesn't _always_ work. Sometimes I just mash my mouse into the side of my screen and never get on to my iPad. So I've just switched to Logitech bluetooth mouse and keyboard. It's easier than a KVM and more reliable than software.
