This is like the definition of scope creep, but.... When Bryan said he joked about wanting the board game timer integrated into Tabletopia, I saw it as a challenge! And, today I finished version 1 of my solution, a chrome extension!
The idea is simple. We play tabletopia board games in a browser. So, if I can put the timer UI in an overlay on top of the game, then ... well, then it is as good as if it was integrated into tabletopia itself! :-) So, that is what I've done, and it works!