The apply command now works only from a serialized CBOR data (instead of a UPLC syntax). So it is no longer possible to specify arbitrary cbor terms through the CLI. I believe it to be an acceptable limitation for now; especially given that Aiken will never generate blueprints with non-data terms at the interface boundary.
CLI
This is the crate that contains the aiken command line application which bundles together all the other crates in this project.
Install
cargo install aiken