Use the 60-60-30 solution with 50-minute work blocks and 10-minute breaks, triggered by a digital timer beeping

Specific structure: '60 minute chunks where we're trying to stay focused and then we've got this 30 minute chunk where we're trying to have a small meal and have a break. As soon as we're finished with one of our 60 minute chunks, and really what we want to do is work for 50 minutes and then take a little 10-minute break'