Blog author here. This article is from 2014, and the latest documentation of Samsung NX cameras and their Linux underpinning is https://op-co.de/blog/posts/samsung_nx_archaeology/

My most fascinating find was actually the Galaxy NX, which is an Android 4 phone with a dedicated camera SoC running the same flavor of Tizen Linux as the NX300.

Edited to add: Since Dpreview is shutting down, I've also created a reddit for the Samsung NX fans: https://old.reddit.com/r/SamsungNX/