I think I remember reading there's a legit tek somewhere out there; the catch is that there are also a lot of fake teks, either because they're supposed to be satire, or because someone's trying to look good on a random forum and they know no one will actually try it due to equipment requirements. Additionally, I think you can technically do it with stuff at home, but the quality and yield would probably be shit, which is something you don't want to fuck with when it comes to ergot.