I mean, it’s not advisable as they are intended to live out in the wild. Even if you managed to tame one: would naming it Lemmy be suitable while being a literal mascot of Lemmy (this website). However, lemurs aren’t the “typical” pet like that you would expect from a cat, dog, hamsters or even a bird.
From a quick youtube search I guess you can, there are a lot of videos of people interacting with lemurs in captivity.
As they are small they can’t scratch off your face like chimpanzees. Afaik the problem with feral animals as pets that that they are not reliable, they can forget humans are not a threat. There are a lot of stories of chimpanzees who were living their whole life with humans unexpectedly attacking people, like: https://en.wikipedia.org/w/index.php?title=St._James_Davis_chimpanzee_attack&wprov=rarw1 or https://en.wikipedia.org/w/index.php?title=Travis_%28chimpanzee%29&wprov=rarw1