I dont want to comment on the attitude, since that is subjective.
To clarify, he wants to get all of this without any work. Just to import it and be done (at least it came out that way in the limited communication we had).
Imho this is not a language fault. This is ecosystem fault AND to be honest i think the stuff hes requiring is missing in most ecosystems.
I gave him somewhat specific tutorial how to do it with the Tardy runtime (stuff ZZZ is running on and you can use stand-alone or even directly from ZZZ), which is not even hard to use, its conceptually verry similar to the way you would od so for example in C# or Go. Yes it has a bit more complexity because of no GC, but we are HERE because it is supposed to run fast no?