What protocol is it based on?

looks nice, a bit more like discord than Element for sure.

They are working on it, the leas dev is working with the lead Dev of slidge to propose a new Spaces protocol to enable “sub-channel” type functionality.

Houdini M2 over LORA is kind of a replacement.

YouTube video on it

Its a commercial product fundamentally. Looking at the company’s site its clear this is an attempt to sell their commercial/enterprise “private cloud” node hardware to the general public but they’ve botched the marketing.

Medical and Transport are their core business, and they are a software-first company that has built a hardware solution for ready drop-in of their secure private cloud server software stack. https://www.nexalta.net/blog-news/11

Looking at NAS options is how I found this, I got suggested a few NAS kickstarters, but the hardware on this one seems to be superior over all. Too bad the documentation sucks.

OK, you might be on to something there.