I believe the biggest challenge has actually been to resist scope creep. Knowing where to stop, and push back when users would like us to add something that doe

I believe the biggest challenge has actually been to resist scope creep. Knowing where to stop, and push back when users would like us to add something that does not fit the scope, is sometimes difficult. Scala.js was never a toy project. It was the focus of my PhD thesis, and even after I've had enough time to maintain it as part of my job.