Is it possible to get LineageOS working on Samsung Galaxy S6 T-Mobile USA (zerofltetmo, SM-G920)?
I was able to install this cryptic NexusOS version of LineageOS by Team Nexus. 

I have no idea if it's safe, or a good ROM, The github is here but it's lacking information, an issues page, or a website on it, and it only seems to be referenced in broken english blogs, and scam searches appear when searching 
nexus-roms.eu on duckduckgo, and their site is down. So I would not recommend it.
It does seem to install &amp; boot on the T-Mobile USA Samsung Galaxy S6