new approach 2

new2/default.nix

@@ -51,7 +51,10 @@ let
   ## By default, we download a specific version of loco.  But if you had a
   ## local codebase for development purposes, you could use that instead.
 
-  ramdisk = callPackage (fetchTarball https://github.com/totten/ramdisk/archive/master.tar.gz) {};
+  loco = callPackage (fetchTarball https://github.com/totten/loco/archive/v0.4.5.tar.gz) {};
+  # loco = callPackage /home/myuser/src/loco { inherit pkgs; };
+
+  ramdisk = callPackage (fetchTarball https://github.com/totten/ramdisk/archive/5c699fbeb8ce3d8f3862a726e1e2684067b237dd.tar.gz) {};
 
   ## Generating php.ini requires some special work.
   phpExtLoader = extSpec: (callPackage ./.loco/pkgs/php-exts/default.nix ({ inherit pkgs; } // extSpec));
@@ -97,6 +100,7 @@ in [
   pkgs.which
   pkgs.zip
   sd-core
+  loco
 
   ## Aside: Downloading a different version of PHP or MySQL or NodeJS is
   ## simple, but bear in mind: this is upgrading (or downgrading).  You