Download Sony’s official Remote Play for Mac OS X from here, install it, run it, and sign in with your PSN account.
Connect your PS4 controller with a microUSB cable (Bluetooth support has yet to land), and, well, that’s pretty much it. Everything looks and works exactly the same, except your actual console could be hundreds of miles away.
Game as normal, and never leave your desk for lunch ever again.
Mac - minimum specs
OS X Yosemite / OS X El Capitan
Intel Core i5-520M Processor 2.40 GHz or faster
40 MB or more of available storage
2 GB or more of RAM
Setting up your PC
Setting up Remote Play on your PC is just as easy. Again, download Sony’s official Remote Play for Windows from here, install it, run it, and you guessed it, sign in with your PSN account.
Hook up your PS4 controller with a microUSB cable and you’re good to go.
It’s worth bearing in mind that you can use basic navigational tools like the left and right keys to move around the PS4 menu while using the Enter and esc keys, but you’re practically completely useless without an actual PS4 controller to run the show.
PC - minimum specs
Windows 8.1 (32-bit or 64-bit) / Windows 10 (32-bit or 64-bit)