any plans to add context support ?

I am thinking on it. To be honest, the current design works fine for my use cases: simply put, the function that defines a pipeline should have context.WithCancel() and defer cancel() calls.

I need a feedback on this. What kind of builtin context support would work for you? Do you need something like errgroup's ability to automatically cancel the context on first error?

I've just pushed few small changes to the readme that better explain context usage