1 files changed, 16 insertions, 4 deletions
diff --git a/Biz/Bild/Builder.nix b/Biz/Bild/Builder.nix
index 2b1403a..7ce29a2 100644
--- a/Biz/Bild/Builder.nix
+++ b/Biz/Bild/Builder.nix
@@ -34,11 +34,11 @@ let
 
   src = lib.sources.cleanSourceWith {inherit filter; src = lib.sources.cleanSource root;};
 
-  langdeps_ = pkgset:
+  langdeps_ =
     if langdeps == null || langdeps == [] then
       []
     else
-      private.selectAttrs (lib.strings.splitString " " langdeps) pkgset;
+      private.selectAttrs (lib.strings.splitString " " langdeps) private.${packageSet};
   sysdeps_ =
     if sysdeps == null || sysdeps == [] then
       []
@@ -48,14 +48,26 @@ let
 in {
   base = stdenv.mkDerivation rec {
     inherit name src BIZ_ROOT postUnpack;
-    buildInputs = [ (private.${packageSet} langdeps_) ] ++ sysdeps_;
+    buildInputs = langdeps_ ++ sysdeps_;
+    installPhase = "install -D ${name} $out/bin/${name}";
+    buildPhase = compileLine;
+  };
+
+
+  haskell = stdenv.mkDerivation rec {
+    inherit name src BIZ_ROOT postUnpack;
+    buildInputs = sysdeps_ ++ [
+      (private.ghcWith (p:
+        (private.selectAttrs (lib.strings.splitString " " langdeps) p)
+      ))
+    ];
     installPhase = "install -D ${name} $out/bin/${name}";
     buildPhase = compileLine;
   };
 
   python = buildPythonApplication rec {
     inherit name src BIZ_ROOT postUnpack;
-    propagatedBuildInputs = [ (private.${packageSet} langdeps_) ] ++ sysdeps_;
+    propagatedBuildInputs = [ (private.pythonWith (_: langdeps_)) ] ++ sysdeps_;
     buildInputs = sysdeps_;
     checkInputs = [(private.pythonWith (p: with p; [black mypy pylint]))];
     checkPhase = ''