Power-up to apply Pomodoro ® Technique to Trello-based Workflow?

How do you apply Pomodoro ® Timer to Trello workflow?
There are tons of extensions on the browser, but how many power-ups can start the countdown timer, log the time you spent on a task somewhere you can see the history (and export it) and use all the power of the XXI century around (e.g. block certain websites, shut up Slack (via Do Not Disturb mode) and let your teammates know what you’re on)?

We’re at PomoDone App offer a way to sync Trello boards and cards into the desktop and mobile apps and embed timers into the web version of Trello, but now we consider to add Trello Power-Up to our ecosystem.

What do you think about this idea? Is it worth it?