[Nix-dev] How do I change vim compile options from my configuration.nix?

[Anders Lundstedt]

On Wed, Nov 25, 2015 at 6:22 PM,  <joachifm at fastmail.fm> wrote:
> One way to achieve this is via ~/.nixpkgs/config.nix. Vim happens to
> have a configurable variant. Something like (untested)
> ```nix
> {
>   vim.python3 = true;
> }
> ```

I do not have a ~/.nixpkgs/config.nix. I created one with those three
lines but that did not help. I then tried to put the line "vim.python3
= true;" in my configuration.nix, which gave the following error when
doing "nix-rebuild --switch":

error: The option `vim' defined in `/path/to/configuration.nix' does not exist.


> See `<nixpkgs/pkgs/applications/editors/vim/configurable.nix>`
> for details.

Since I do not know the nix language that file is unfortunately mostly
gibberish to me.