I tested Artix Linux: An enjoyable systemd-free distro for experienced users (and ChromeOS speeds)

If you want a stable Linux distribution with a unique take, Artix is one of the fastest and most reliable I've tested.
TMCnet

Hardening Trading Infrastructure: Using Immutable Ledgers to Secure Financial Data on Linux Platforms

Most exchange backends still run on Linux - matching engines, market-data services, FIX gateways, and high-throughput trading ...
MUO on MSN

I found a Linux command that shows exactly which app is eating my disk I/O in real time

iotop works like top, but it watches your disk instead of your CPU.