I ended up just converting to a method where instead of running the pomodoro on a timer, I run a stopwatch instead.

Then concept is still the same, in terms of focusing on the topic at hand. I no longer count down to my breaks, I just count up until I want/need to take a break.

It's basically just a glorified time tracker, I guess, but it was my solution to the pomodoro "break" problem, i.e. sometimes I don't want to take a break.