{ inputs = { nixpkgs.url = "github:NixOS/nixpkgs/nixpkgs-unstable"; flake-utils.url = "github:numtide/flake-utils"; }; outputs = { self, nixpkgs, flake-utils }: flake-utils.lib.eachDefaultSystem(system: let pkgs = import nixpkgs { inherit system; }; inherit (pkgs) lib; in { packages.default = pkgs.stdenv.mkDerivation rec { name = "Caaard"; src = ./.; phases = "installPhase"; installPhase = '' mkdir -p $out/assets cp $src/index.html $out/ cp $src/assets/* $out/assets/ ''; }; } ); }