Cargo Features

cln-grpc has no features set by default.

[dependencies]
cln-grpc = { version = "0.3.0", features = ["server"] }
server = cln-rpc

Features from optional dependencies

In crates that don't use the dep: syntax, optional dependencies automatically become Cargo features. These features may have been created by mistake, and this functionality may be removed in the future.

cln-rpc server?