Built in 2020 and named after the setting of my favorite game, Arstotzka is my unRAID server build, based off a Xeon W-1290P CPU. I bought the CPU/motherboard/RAM combo off of /r/HardwareSwap for $600 which was an extremely good deal.
For storage, I bought four WD Elements 12TB external HDDs on sale and shucked the drives. They turned out to be WD120EDAZ white labels. I keep three of them in the system for 24TB of storage with 1 drive parity and fourth as a cold spare. I have a 1TB Intel 665p NVMe SSD as a cache drive.
The primary purpose of this server is to run Plex, I use the LinuxServer.io Docker image. I had a spare GTX 1070 I threw in for transcoding.