diff --git a/composer.json b/composer.json
index 3025b2a..d85d460 100644
--- a/composer.json
+++ b/composer.json
@@ -47,10 +47,6 @@
     "minimum-stability": "dev",
     "prefer-stable": true,
     "scripts": {
-        "post-autoload-dump": [
-            "Illuminate\\Foundation\\ComposerScripts::postAutoloadDump",
-            "@php artisan package:discover --ansi"
-        ],
         "post-root-package-install": [
             "@php -r \"file_exists('.env') || copy('.env.example', '.env');\""
         ],
diff --git a/default.nix b/default.nix
index 6e8d843..0df6cda 100644
--- a/default.nix
+++ b/default.nix
@@ -1,23 +1,13 @@
-{ pkgs ? import <nixpkgs> {} }:
-with pkgs;
+{pkgs ? import <nixpkgs> {
+    inherit system;
+  }, system ? builtins.currentSystem, noDev ? false}:
+
 let
   composerEnv = import ./composer-env.nix {
     inherit (pkgs) stdenv lib writeTextFile fetchurl php unzip phpPackages;
   };
-  phpPack = import ./php-packages.nix {
-        inherit (pkgs) fetchurl fetchgit fetchhg fetchsvn;
-    };
 in
-stdenv.mkDerivation {
-  name = "searchanddisplace-core-source";
-  src = builtins.fetchGit {
-   url = "https://git.law/newroco/searchanddisplace-ingest.git";
-   ref = "master";
-  };
-
-  phases = [ "installPhase" ];
-  installPhase = ''
-    cp -r $src $out
-    composer install
-  '';
+import ./php-packages.nix {
+  inherit composerEnv noDev;
+  inherit (pkgs) fetchurl fetchgit fetchhg fetchsvn;
 }