nixos/profiles/systems/builder.nix

   1 { inputs, pkgs, lib, config, ... }:
   2 {
   3 nix.extraOptions = ''
   4   experimental-features = nix-command flakes
   5 '';
   6 #nix.registry.self.flake = inputs.self;
   7 # Pin the rev to the revision of the public Nixpkgs that the system was built from.
   8 # This is the version which will be locked by flakes using flake:nixpkgs
   9 nix.registry.nixpkgs = {
  10   from = { id = "nixpkgs"; type = "indirect"; };
  11   to = {
  12     owner = "NixOS";
  13     repo = "nixpkgs";
  14     rev = inputs.nixpkgs.rev;
  15     type = "github";
  16   };
  17 };
  18 /*
  19 # WARNING: this is a hack to avoid copying Nixpkgs
  20 # a second time into the Nix store.
  21 # It makes only sense when Nixpkgs is already in the Nix store,
  22 # and is registered.
  23 environment.etc."nixpkgs".source = pkgs.path;
  24 environment.etc."nixpkgs-overlays".source =
  25   pkgs.writeTextDir "overlays.nix" ''
  26     import ${inputs.self + "/nixpkgs/overlays.nix"} ++
  27     import ${inputs.julm-nix + "/nixpkgs/overlays.nix"}
  28   '';
  29 nix.nixPath = [
  30   "nixpkgs=/etc/nixpkgs:nixpkgs-overlays=/etc/nixpkgs-overlays/overlays.nix"
  31 ];
  32 */
  33 }