Define the role and organization of the foundation

[thufschmitt]

Should probably go to nixos.org once committed, but let's discuss it here for now

[nixos-discourse]

This pull request has been mentioned on NixOS Discourse. There might be relevant details there:

https://discourse.nixos.org/t/tweag-nix-dev-update-43/25185/1

[thufschmitt]

@NixOS/foundation (and anyone interested), I've reshaped this quite a bit to make it clearer and more concise. Reviews welcome

[fricklerhandwerk]

That may sound pedantic, but the documentation team converged on using British English some time ago, so that may be a consideration for this document as well.

[nixos-discourse]

This pull request has been mentioned on NixOS Discourse. There might be relevant details there:

https://discourse.nixos.org/t/tweag-nix-dev-update-46/26872/1