I recently got a Logitech Performance Mouse MX as well as a Logitech K350 Keyboard. Both these devices use Logitech's new Unifying Receiver, which is a great concept and since the receiver is so small it's ideal for a laptop setup.
Unfortunately if you have two separate devices that both use the unifying receiver the devices need to be paired to a single receiver using software, and of course there's no Linux version of the software.
Once the pairing of the devices with the unifying receiver is complete, however, it doesn't rely on the software to work. What this means is if you're using separate devices with a unifying receiver on Linux you can first configure the devices on Mac or Windows, and then plug the single unifying receiver into Linux and it will work.
A Linux version of the software would be nice but if you have a Mac or Windows computer laying around this is a handy workaround.