u/Aidenn0

I added this module to my nixos configuration:

{ nixpkgs, pkgs, lib, ...}:
let upstreamRegistry = pkgs.fetchurl {
  url = "https://raw.githubusercontent.com/NixOS/flake-registry/refs/heads/master/flake-registry.json";
  hash = "sha256-e56aGI09taupUuZbn3ocfEe4EyOWjWwr/sl8oByiBIw=";
};
upstreamRegistryNix = builtins.fromJSON (builtins.readFile upstreamRegistry); in
{
  nix.settings.flake-registry = pkgs.writeText "registry.json" ( builtins.toJSON {
    version = upstreamRegistryNix.version;
    flakes = upstreamRegistryNix.flakes ++ [ 
      { exact = true;
      from.id = "local-nixpkgs";
        from.type = "indirect";
        to = {
          type = "path";
          path = nixpkgs.outPath;
        } // lib.filterAttrs (n: _: n == "lastModified" || n == "rev" || n == "narHash") nixpkgs;
      }
    ]; });
}

Now I can use:

inputs.nixpkgs.url = "flake:nixpkgs-local"

for building my profile and have my profile use the same version of nixpkgs as my system. Someday someone will make a convincing argument to me why having flakes stop accepting the system registry entries was a Good Thing (surely lockfiles are sufficient?), but until then, I will work around it.

Always looking for options for playing my music on my AppleTV that are better than running iTunes under wine. I'm totally willing to pay $10 if it doesn't suck, but after getting burned by SubSwift (it's terrible), I'd like to see what other people think.