push sheeet

pkgs/development/beam-modules/build-hex.nix

@@ -0,0 +1,31 @@
+{
+  lib,
+  buildRebar3,
+  fetchHex,
+}:
+
+{
+  name,
+  version,
+  sha256,
+  builder ? buildRebar3,
+  hexPkg ? name,
+  ...
+}@attrs:
+
+let
+  pkg =
+    self:
+    builder (
+      attrs
+      // {
+
+        src = fetchHex {
+          pkg = hexPkg;
+          inherit version;
+          inherit sha256;
+        };
+      }
+    );
+in
+lib.fix pkg