Yeah, the path you're talking about is pretty common actually. Companies handwrite one SDK in the language they're most familiar with, then use OpenAPI-Generator to produce a few others and try to patch up the obviously broken things.

They tend to get quite sick of both hand-maintaining any SDK (even in the language they love), and of dealing with the problems/toil of the openapi generator (or the user complaints of the non-idiomatic code they didn't understand, because it was in a different language).

Still, it's better than nothing, so I applaud those who take on the effort!

Thanks for the kind words – we hope to help bring the well-typed nature of gRPC to REST, without making things more complicated.