Be aware that you might not want to be one. Being fast at something implies that you are really adept in it. I am mostly interested in stuff that's nontrivial t

Be aware that you might not want to be one. Being fast at something implies that you are really adept in it. I am mostly interested in stuff that's nontrivial to me, and, as a consequence, I'm not particularly fast in it. People tend to be very fast in modifying/changing their own code, but not everyone can/wants to do that.