update

2023-07-24-fodonuts.md

@@ -721,7 +721,7 @@ FODONUTs are quite useful for tests, but have a few downsides as well:
 
 I know of a few examples of FODONUTs in the wild:
 
-1.  [Stack / Hpack version test](https://github.com/NixOS/nixpkgs/blob/c78223a5fff5cd89819a88f23de03d3b8d45c796/pkgs/test/haskell/upstreamStackHpackVersion/default.nix)[^9]
+1.  [Stack / Hpack version test](https://github.com/NixOS/nixpkgs/blob/c78223a5fff5cd89819a88f23de03d3b8d45c796/pkgs/test/haskell/upstreamStackHpackVersion/default.nix)[^9] in Nixpkgs
 
     This is a test to make sure that the version of the `hpack` dependency used
     by `stack` in Nixpkgs matches the same version as upstream.  This test
@@ -767,6 +767,12 @@ I know of a few examples of FODONUTs in the wild:
     This doesn't technically use FODONUTs, but it does contain a FOD with a
     [carefully constructed `name`](https://github.com/cdepillabout/evil-nix/blob/415e2fdc6b6897f2bff7f068edbc3d70a8b9ec2b/nix/evil/downloadBitNum.nix#L43).
 
+4.  The [repro-get pkg-version test](https://github.com/NixOS/nixpkgs/blob/d2128e82eeb1ace7c424a86e035ac9b1ad8451f2/pkgs/tools/package-management/repro-get/default.nix#L45-L59) in Nixpkgs
+
+    This was [authored](https://github.com/NixOS/nixpkgs/pull/207988) by
+    [Matthew Croughan](https://github.com/MatthewCroughan) and
+    [Robert Hensing](https://github.com/roberth).
+
 I imagine there are more examples of FODONUTs being used in other projects and
 proprietary repos.  If you have an example of a FODONUT,
 [please share](https://discourse.nixos.org/t/fodonuts-fixed-output-derivations-for-operating-network-utilizing-tests/30874)!