Comment by krschultz

IMO one of the nice things about Buck or Bazel is that once you learn it, switching languages doesn't require you to learn a completely new tool. Obviously the cost of learning it the first time is high and if you are used to one ecosystem may not be worth it. But I'm now on my 3rd different ecosystem that uses Buck/Bazel (Android, iOS, C++) and it's nice to not worry at all about the underlying tools.