Tired of setting your alarm clock to a different time each day? Tired of waking up to typical radio fodder or annoying beeps? Citrus can help. Citrus is a software alarm clock, and the result of many missed busses. As a student, I used to set my alarm clock to a different time each day. Worse, my radio alarm clock was unpredictable. Some days I’d wake up to an unexpectedly loud heavy metal band—the next day, quiet chatter. After sleeping through a quiz entirely, I wrote Citrus Alarm Clock.