{ lib, config, outputs, inputs, ... }: { nixpkgs.config = { allowUnfree = true; allowUnfreePredicate = _: true; cudaSupport = true; }; nix = let flakeInputs = lib.filterAttrs (_: lib.isType "flake") inputs; in { settings = { # Enable flakes and new 'nix' command experimental-features = "nix-command flakes"; # Opinionated: disable global registry flake-registry = ""; # Workaround for https://github.com/NixOS/nix/issues/9574 nix-path = config.nix.nixPath; # allowUnfree = true; auto-optimise-store = true; builders-use-substitutes = true; keep-derivations = true; keep-outputs = true; trusted-users = ["root" "@wheel"]; substituters = [ "https://cache.nixos.org" "https://nix-community.cachix.org" ]; trusted-public-keys = [ "cache.nixos.org-1:6NCHdD59X431o0gWypbMrAURkbJ16ZPMQFGspcDShjY=" "nix-community.cachix.org-1:mB9FSh9qf2dCimDSUo8Zy7bkq5CX+/rkCWyvRCYg3Fs=" ]; }; # Opinionated: disable channels channel.enable = false; # Opinionated: make flake registry and nix path match flake inputs registry = lib.mapAttrs (_: flake: {inherit flake;}) flakeInputs; nixPath = lib.mapAttrsToList (n: _: "${n}=flake:${n}") flakeInputs; }; }