I was thinking about what else to put on the panel but couldn't come up with something original. Since the most essential parts for a 'starter kit' (buttons, LEDs) are already there I was thinking what the next step would be. In most tutorials this next step is controlling something that requires more voltage or current than the MCU can deliver (besides using some special IC or a display). For this reason and because I need a PWM driver for other projects I threw together this MOSFET breakout:
Therefore I added the footprints anyway and will populate them as needed. I don't see why a MOSFET would require a voltage divider or a series resistor at the gate, but I'd be happy if anyone could let me know the reasoning behind that.
The pinout seems to be pretty common and since pin 2 and the tab are internally connected in a lot of cases this board should also work with SOT-223 packages and as a general breakout thereof.
 citation needed