It's that time of the year again.
I've been using Linux for about 30 years. Mine was the first installation, given Linus didn't install it on his computer, he grew it on top of an existing Minix install, replacing it piecemeal.
My first contribution is over 30 years ago, about April, 1991, the sprintf (now snprintf) function in the kernel.
It's been a fun ride.