I once had a conversation with some ER nurses about the best way to commit suicide. They took indeed a very hacker-like approach to the problem. Some of the suggestions were insulin or potassium overdoses. Maybe not what you'd expect as a layperson.

It seems like the go-to drug for terminally ill patients is often hoarded morphine or morphine derivatives, but death is slow and drawn-out, and someone might get the brilliant idea to resuscitate you, leaving you brain damaged and worse off than the situation you tried to escape from.