For work I have a separate laptop with VPN and all that. Any game dev takes place as my private project and I run it on my gaming laptop which is more than decent. Also, I use a macbook air to test the mac versions of my game.
In my case, it all revolves around a desk that I designed and also built (so you’ll probably understand why the imperfections) that acts as a central place for it all. Inside the desk I have my gaming laptop and there’s a whole lot of wiring you cannot see that allows me to connect the laptop to the monitors or tv. Also, above the monitors, behind the doors, among other stuff, I have my XBox 360, PS4 and other consoles that have their own power and also cables. By using the same infrastructure, I am able to relay either of those to either monitor or TV (which is on the wall to the left of my desk).
This has the advantage of allowing me to quickly become mobile if I want, but I can also keep the desktop feel to it (and the wood feels fantastic).
The most important part of it all in my opinion is lighting. In this situation, I have discrete lighting behind the monitors for which I can turn down intensity from buttons on the right side. Also, for extra lighting I have two black and very portable LED lamps that you can only see one of in this picture.
However, as it involves code and coding, whatever I do, I backup monthly on M Discs, cloud and other places. Testing I do on some other PC laptops I have and virtual machines and I have also a friend that has some equipment and helps me with testing. 95% of issues I catch immediately when running the game on a clean install of Windows, so I recommend that.
Oh, the thin door you see there, holding the keyboard in one of the pictures is easily detatchable, and the purpose of that is allowing me to place the gaming wheel on.
Maybe a bit of overengineering, but hey… I was really getting bored sitting mostly in the house due to this pandeminc, so I said, it’s worth it. 
Hope this inspires you, if you’re looking for something like this.

