Noobie question about the :sls target

[AtlasRW]

Hi everyone,
I don't know if I'm in the right place for this, but i'm trying nx-serverless v1.1.2 to migrate my existing project into a monorepo.
As I'm not used to developing plugins for Nx, looking through the code didn't really help me much about my question.
It's all about the :sls target, and how to work with it, if it is possible to work with it.

First of all, the :sls target was not present in the workspace.json when I generated an api-serverless app, so I've adapted the one present in the documentation, but that's detailed only in the AngularUniversal part so maybe that's part of the problem.

I simply don't get it, how to pass commands like param get or plugin list ?
I didn't even managed to find how to get the help command working, and they ironically tell me to type help to know the available commands... It's as funny as frustrating.

I've tried to pass a string like --command="param get" but it doesn't work...
I know it's there, somewhere, that's why I didn't file an issue about that.

If anyone has the answer, would really appreciate some help on this, please.