I didn't get the system running but got the following error message:
Status: Downloaded newer image for scribblerockerz/cryptletter:latest
Creating cryptletter_redis_1 ... done
Creating cryptletter_app_1 ... error
ERROR: for cryptletter_app_1 Cannot start service app: OCI runtime create failed: container_linux.go:349: starting container process caused "exec: \"./cryptletter serve\": stat ./cryptletter serve: no such file or directory": unknown
ERROR: for app Cannot start service app: OCI runtime create failed: container_linux.go:349: starting container process caused "exec: \"./cryptletter serve\": stat ./cryptletter serve: no such file or directory": unknown
ERROR: Encountered errors while bringing up the project.
I didn't get the system running but got the following error message: