@rcull: Thanks for the tip about alarmtool!
I haven't tried it yet, and there's a lot of other experimenting I'm not done with (had to sleep a bit too..), but one thing I noticed is that it appears to be always starting up in earbud mode.. for it to work as a clock radio it should start in speaker mode, or, to be precise, it should always start in the mode it was last set to. At least it seems to switch to earbud mode when I put in the antenna, haven't yet tried to leave it in and stop/start.

As for the sound level, it seems ok if I listen to the earbuds, but the speakers sound much lower to me than the internet radio, at the same volume settings. Strong stations are louder than weak stations, but still not very loud.