Found a page with some information + a screenshot of Harmonica:
https://linuxreviews.org/HamoniKRThere wasn't any english stuff for Tmax distro that I could find...
idk why they don't just adopt Debian + Gnome for their desktop stuff with some Korean development work on top of that. It's a great looking UI/UX and would be perfect especially if most of the software is via the browser/SaaS anyway. Or some occasional wine translations where needed.
But I guess that's just how governments work and their constant obsessions with the sunk cost fallacy.
Edit: Harmonica seems to be doing the right thing already, from the review:
> However, it is, at it's core, just Linux Minux with two special PPAs for Koreans on top.
This isn't something to shame them for, this is how it should be done.