Will nix.conf options set in commandline be forwarded to remote builders?

[mightyiam]

I’ve never used Nix with private repositories, but surely impurity can be avoided, I would imagine. Found some pages:

Credentials provider support for builtins.fetch*

How to fetchurl with credentials

This is solved using Enterprise - NixOS Wiki. # /etc/nix/netrc machine DOMAINNAME login USERNAME password SECRET for something like private github repos, you would do: machine github.com password TOKEN

Recommended way of providing username/password for private GitHub repos

fetchgitPrivate supports reading ssh-auth-sock and git-ssh from the nix path as a way to use SSH keys to access git repositories. You can use this to keep your credentials in the ssh-agent instead of in the environment. I believe private repositories on GitHub support ssh.