Overcoming "Error: Experimental Nix Feature 'nix-command' is disabled..

[dhinojosa]

Howdy,

I get an 'error: experimental Nix feature 'nix-command' is disabled; add '--extra-experimental-features nix-command' to enable it'

Would you like me to add some text to the README.md on how to resolve that as a PR? Or just let the end users figure it out?

I did a nix develop github:typelevel/typelevel-nix#library --extra-experimental-features "nix-command flakes" and that worked well.

I suppose some of the other solutions are:
export NIX_CONFIG="experimental-features = nix-command flakes"

or editing your nix.conf. Let me know, and I can add a PR

[rossabaker]

This is the sort of thing experienced Nix users put in their configs long ago and forget is a rough edge for new users. I agree there should be a note. Maybe the best way to document it is to link to the setup in the Nix wiki.

[dhinojosa]

Sending over PR now