* Simplify.

release.nix

@@ -1,15 +1,12 @@
-let
-
-
-  jobs = rec {
-
-
-    tarball =
-      { hydraSrc ? {outPath = ./.; rev = 1234;}
-      , nixpkgs ? ../nixpkgs
+{ nixpkgs ? ../nixpkgs
+, hydraSrc ? {outPath = ./.; rev = 1234;}
 , officialRelease ? false
 }:
 
+
+rec {
+
+  tarball =
     with import nixpkgs {};
 
     releaseTools.makeSourceTarball {
@@ -58,10 +55,7 @@ let
 
 
   build = 
-      { tarball ? jobs.tarball {}
-      , nixpkgs ? ../nixpkgs
-      , system ? "x86_64-linux"
-      }:
+    { system ? "x86_64-linux" }:
 
     let pkgs = import nixpkgs {inherit system;}; in
 
@@ -70,7 +64,7 @@ let
     let nix = nixSqlite; in
 
     stdenv.mkDerivation {
-        name = "hydra" + (if tarball ? version then "-" + tarball.version else "");
+      name = "hydra-${tarball.version}";
 
       buildInputs =
         [ perl makeWrapper libtool ]
@@ -121,7 +115,4 @@ let
       };
     };
 
-  };
-
-
-in jobs
+}