Custom ports argument not working?

Might be broken again, got this:

```
% npm run start --port 9091

> example@1.2.3 start
> npm run docker:start || exit 0 9091


> example@1.2.3 docker:start
> docker compose run --rm --service-ports tools start

1 error(s) decoding:

* error decoding 'Ports': Invalid hostPort: true
sh: line 0: exit: too many arguments
```