My day job is programming Minix. It has been for over 9 years. I've come to love it and systems programming in general. I've decided I want to develop myself further in the field of systems programming. It seems embedded systems is where commercial value and systems programming meet, so that is what I want to develop.
My friends Joel Sherril and Chris Johns are core members of the RTEMS project, a very prestigious Realtime Embedded OS in the sense that it runs on highly safety- and reliability-critical systems from NASA, JPL, ESA, CERN, BMW and many others we do and don't know about. I'm in contact with them a lot lately in order to learn more and contribute. RTEMS is the opposite of Minix, and that is a pleasant change of pace and scenery really.