I want to imporve nix registry slightly:

1. Add --registry flag to select the registry file to manipulate (instead of $XDG_CONFIG_HOME/nix/registry.json)
2. Add an optional second argument to nix registry pin that would accept a flake URI to pin the flake to, instead of taking it from the global registry.

This will make nix registry actually useful for managing custom registries.

In reply to @balsoft:balsoft.ru
Also, I want to add the ability to mark registry entries as "flake": false to make custom registries even more useful.

In reply to @balsoft:balsoft.ru
Is there any way to get at least https://github.com/NixOS/nix/pull/4969 merged? I have tested it on multi-user and single-user systems, not sure what else to do

{ ... }: {
	services.bind.zones = {
		"${networking.hostName}.${networking.domain}" = {
		file = "/var/dns/${networking.hostName}.${networking.domain}";
		master = true;
		masters = [ "192.168.0.1"	];
		};
	};
}

Howddya use the `networking.* things in this file?

{
  outputs = { nixpkgs, ... }: {
    devShell.x86_64-linux = derivation {
      name = "test";
      builder = "${nixpkgs.legacyPackages.x86_64-linux.bash}/bin/bash";
      args = [
        (builtins.toFile "builder" ''
          set -exuo pipefail
          echo hier
          echo hi > $out
        '')
      ];
      outputs = [ "out" ];
      system = "x86_64-linux";
      FOO = "@";
    };
  };
}