My home office. Very simple.
You might be able to tell I love music 
The table is from JYSK, it is called ULLITS, chair is a Kinnarps 6110
My Mac is a Late 2015 5k iMac (i5 3,2 Ghz, 16 GB ram, 512 GB SSD, AMD R9 M390 2 GB)
Apple Magic Keyboard and a Logitech MX Anywhere 2S in graphite
A pair of Argon Octave 5A loudspeakers, paired with a DALI SUB E9F
Behind the display a RGB LED strip, and the lamp on the desk is from IKEA.
All the lights are remote controlled. (Not HomeKit though)