Not sure if this would interest anyone, but this is something I find intriguing.
Apparently the developers of CEMU have been claiming that you can't use two different CEMU executables with different NNID accounts on the same PC to have both playing online. But it turns out you can just fine.
What this functionality means is that you can, for example, play online in Splatoon with two or more players on the same PC, depending on how powerful your computer is. So it's a nice way to play online in these games with your friends who don't own a copy of the game or maybe they do but you want to play together with them in person and don't have two TVs for two Wii U systems or anything like that, and considering the fact that Splatoon doesn't actually have a way to play online with two players from the same system built into the game, like Mario Kart 8 and Smash Wii U do. Just invite them over and make an account for them on your Wii U, and dump that account and put it in your CEMU directory. Or if they have a Wii U, get them to dump their account.
It's an incredibly niche feature that I know I personally have no use for, but I think it's cool that it can be done.
I guess the developers lied about it because it could be potentially abused (e.g someone makes a second account to leave it idle on enemy teams in Splatoon, putting the enemy team at a disadvantage), and also requires you to make a second copy of the game dump (which is as simple as copy-pasting the dump on your PC).