Hey, I was trying to use atat in an std context with tokio. Therefore, I was trying to follow the std-tokio example.
I have come across the hurdle that in addition to the atat dependency, I need to declare

embassy-time = {version = "0.4", features = ["std", "generic-queue-8"]}

as a dependency in order to enable the generic-queue-* feature of embassy-time and to to run in a tokio executor context.
This fact is documented in the example Cargo.toml, but (at least to me) it was not very easy to find.

I think it would be a big improvement if this requirement would be highlighted more to new users.