What about Python? They had 34 core developers in 2017 [0]. Python is used by millions of devs. They have to support a multitude of platforms as well.
Same goes for a lot of programming languages like Go: a pretty small core, the rest is external contributions. And they have to support all sorts of platforms/configurations as well (probably more than Flutter does).
Same goes for a lot of programming languages like Go: a pretty small core, the rest is external contributions. And they have to support all sorts of platforms/configurations as well (probably more than Flutter does).
[0] https://pythondev.readthedocs.io/core_devs.html