Is the gym_dart ready to be used?

I guess I am just seeking confirmation it is not. Looks like DartEnv does not implement the necessary interface and offers blocking visualize rather than render(). Am I right it is not functional at this time or?

If you refer to then I believe it’s been already used in many research work (so ready to use).

On the other hand, is still under heavy development so it may have several missing implementations.