{ inputs, lib, ... }: { nix = { settings = { substituters = ["https://hyprland.cachix.org"]; trusted-public-keys = ["hyprland.cachix.org-1:a7pgxzMz7+chwVL3/pzj6jIBMioiJM7ypFP8PwtkuGc="]; trusted-users = [ "root" "@wheel" ]; auto-optimise-store = lib.mkDefault true; experimental-features = [ "nix-command" "flakes" "repl-flake" ]; warn-dirty = false; system-features = [ "kvm" "big-parallel" "nixos-test" ]; flake-registry = ""; }; gc = { automatic = true; dates = "weekly"; options = "--delete-older-than +3"; }; registry = lib.mapAttrs (_: value: { flake = value; }) inputs; nixPath = [ "nixpkgs=${inputs.nixpkgs.outPath}" ]; }; }