I am also a recent Linux convert and advocate for Free software (the capital 'F' is my way of distinguishing Free Speech from free beer). I would like to contribute to some GNU projects once I have enough experience.
I have a hacker's approach to everything, I like to tinker with things and try to figure them out. I even taught myself to play the piano in that inefficient but fun way, and I enjoy writing music, but I struggle to read written music.
I am interested in all branches of science, but mainly natural science, and mainly physics.