Request to implement new $env meta prefix

[XSven]

I have no idea how to refer to environment variables (%ENV) in the args of a service configuration. It would help to have a new meta prefix $env:

args:
  user:
    $env: USER

should assign $ENV{USER} to the named argument user. I would suggest that $env refers to a cached (immutable) copy of %ENV. If you know a CPAN module that wraps %ENV and can be configured as a service to achieve the same please let me know.

[preaction]

Having a $env meta would be a good idea, I think. There'd be a lot of use, and requiring the indirection of a service or something would be clumsy.

[XSven]

1. Do you accept a PR for this feature too?
2. Is the channel irc://irc.perl.org/#beam still in use or was this communication way replaced by another one?

[preaction]

Yep, I'd accept a PR for this as well. And I've basically left IRC, so issues/e-mail are the best ways to get ahold of me personally at least.