The primary purpose of this build was to play Destiny 2 smoothly. I was originally playing Destiny 2 on my HP Spectre 13 which is a business-oriented laptop with integrated graphics and was getting low frame rates and terrible lag. Frustrated, I started watching YouTube videos and reading forums to get an idea of what was recommended / decent for gaming. A cash-strapped student unwilling to compromise on performance, I went for mid-range components and the reasons for each component are outlined below.

Value / Balance

CPU: The i5-8400 is a decent mid-range Intel CPU that is really not all that different from the 8500, 8600 and 8600K (OC). In NZ the prices are not as close to each other as in the US so I surrendered the chance to overclock.

Mobo: The H370 Aorus Gaming 3 WiFi was a choice made on preference. It came with WiFi and Bluetooth, supported NVMe M.2 drives and even came with USB Type-C. Despite not supporting RAM above 2666.7 MHz or more than 64 GB, it has more than enough features to please me.

GPU: The GTX 1060 6GB was on the list of recommended specifications for Destiny 2 and so was the obvious choice. It may be less powerful than the 1070(ti) and 1080(ti) but it was (obviously) the cheapest of them all. A minor frustration is that the price has been dropping below the price I bought it for at my retailer (PB Tech).

PSU: The MWE 550W was the cheapest PSU I could find at PB Tech from a brand I had heard of and was trustworthy. It's non-modular but the case makes up for it with ample hiding space.

Monitor: The Dell U2417H is a monitor that I have previously used but stopped needing so it was returned to my dad. Obviously for this build, I now needed a monitor and my dad still needed the original so I bought a new one of the same model. Perks for having dropped a lot in price since we bought the first one.

Keyboard: The Razer Blackwidow keyboard was the cheapest keyboard I could find on PB Tech that didn't look dodgy. This was despite my dislike of clicky keys.

Windows 10 was paid for because I'd rather not have unactivated Windows thanks. Storage was originally meant to be a bundle but was cheaper separately. RAM was the cheapest reputable product I could find.

Aesthetics

The NZXT H500 case was chosen because of its minimalist clean design but I had a big problem deciding between it and the larger H700. The aesthetics of the cases were similar but I originally hated the mesh for the top fan mount on the H500. After watching some YouTube videos, I acquiesced on the H500 to save money and to be honest, it's not that bad.

A secondary purpose of this build was to dual boot Elementary OS, an Ubuntu-based Linux distribution known for its aesthetics. This was so that I could have the best of both worlds for my programming.

Closing comments:

You may have noticed the build is called NX009, this is a slight reference to Blade Runner; the replicants were originally numbered as NXx...

EDIT: I threw a Nanoblock Gengar in there to fill up the space left by the short GPU, somehow.
EDIT: Nowhere seems to list a 550W MWE PSU but it is 550W.

Anyways, thanks for reading!