Optional environment variable via option

[Roemer]

Hello all
I have a case where I define an environment variable in the feature like:

    "containerEnv": {
        "NODE_OPTIONS": "--use-openssl-ca",
    }

I now have several projects and some of them need this option but others do not.
Is there any way or could a way be added to somehow control if an environment variable should be set or not? same with the PATH variable, sometimes the path variable should be extended and sometimes not.
Not sure how that could look spec-wise.