Use nix flakes with private github deps

.envrc

#!/bin/sh

#If already set (e.g. in github actions); use that instead
if [ -z "$GITHUB_TOKEN" ]; then
  nix run nixpkgs#gh auth status || nix run nixpkgs#gh auth login
  GITHUB_TOKEN="$(nix run nixpkgs#gh auth token)"
  export GITHUB_TOKEN
fi

NIX_CONFIG="access-tokens = github.com=$GITHUB_TOKEN"
export NIX_CONFIG
use flake

README.md

Use nix flakes with private github deps

flake.nix

{
  description = "A very private flake";

  inputs = {
    nixpkgs.url = "github:nixos/nixpkgs?ref=nixos-unstable";
    runners.url = "github:arianvp/runners"; # private dep
  };

  outputs = { self, nixpkgs, runners }: {
    packages.aarch64-darwin.default = nixpkgs.legacyPackages.aarch64-darwin.hello;
  };
}