Modify the `run` bash script to allow the user to build rather than download the `cuckoo_generator`.
Modify the `run` bash script to allow the user to build rather than download the `cuckoo_generator`.

The option is `--build`, no shorthand.

SwiftKit/Cuckoo,SwiftKit/Cuckoo,Brightify/Cuckoo,Brightify/Cuckoo,Brightify/Cuckoo,SwiftKit/Cuckoo