[Nix-dev] What about globalConfig /// userConfig?

[Marc Weber]

We're lacking a feature:
Every single person can choose it's version.
However the system administrator has no chance of defining a config
default which may be overridden by the user.
So what about
/etc/nixpkgs_conifg.nix ?
which is merged with
$HOME/.nixpkgs/config.nix ?
in a sensible way?

i84cOre has asked me how to enable adobeFlash for the system.
The only way I know is editing all-packages.nix which is not the desired
solution

Marc