diff --git a/pkgs/development/python-modules/nbmerge/default.nix b/pkgs/by-name/nb/nbmerge/package.nix
similarity index 72%
rename from pkgs/development/python-modules/nbmerge/default.nix
rename to pkgs/by-name/nb/nbmerge/package.nix
index c7445394aa9b..b6dc642c9687 100644
--- a/pkgs/development/python-modules/nbmerge/default.nix
+++ b/pkgs/by-name/nb/nbmerge/package.nix
@@ -1,31 +1,28 @@
 {
   lib,
-  buildPythonPackage,
   fetchFromGitHub,
-  setuptools,
-  nbformat,
-  pytestCheckHook,
+  python3Packages,
 }:
 
-buildPythonPackage rec {
+python3Packages.buildPythonApplication rec {
   pname = "nbmerge";
   version = "0.0.4";
   pyproject = true;
 
   src = fetchFromGitHub {
     owner = "jbn";
-    repo = pname;
+    repo = "nbmerge";
     rev = "refs/tags/v${version}";
     hash = "sha256-Uqs/SO/AculHCFYcbjW08kLQX5GSU/eAwkN2iy/vhLM=";
   };
 
   patches = [ ./pytest-compatibility.patch ];
 
-  nativeBuildInputs = [ setuptools ];
+  build-system = [ python3Packages.setuptools ];
 
-  propagatedBuildInputs = [ nbformat ];
+  dependencies = [ python3Packages.nbformat ];
 
-  nativeCheckInputs = [ pytestCheckHook ];
+  nativeCheckInputs = [ python3Packages.pytestCheckHook ];
 
   postCheck = ''
     patchShebangs .
diff --git a/pkgs/development/python-modules/nbmerge/pytest-compatibility.patch b/pkgs/by-name/nb/nbmerge/pytest-compatibility.patch
similarity index 100%
rename from pkgs/development/python-modules/nbmerge/pytest-compatibility.patch
rename to pkgs/by-name/nb/nbmerge/pytest-compatibility.patch
diff --git a/pkgs/top-level/python-aliases.nix b/pkgs/top-level/python-aliases.nix
index 2a126eec9987..1d539d225c4e 100644
--- a/pkgs/top-level/python-aliases.nix
+++ b/pkgs/top-level/python-aliases.nix
@@ -308,6 +308,7 @@ mapAliases ({
   mrkd = throw "mrkd has been promoted to a top-level attribute name: `pkgs.mrkd`"; # added 2023-08-01
   multi_key_dict = multi-key-dict; # added 2023-11-05
   mutmut = throw "mutmut has been promoted to a top-level attribute name: `pkgs.mutmut`"; # added 2022-10-02
+  nbmerge = throw "nbmerge has moved to pkgs.nbmerge"; # added 2024-07-05
   net2grid = gridnet; # add 2022-04-22
   nghttp2 = throw "in 1.52.0 removed deprecated python bindings."; # added 2023-06-08
   ninja-python = ninja; # add 2022-08-03
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index 5fab3b99fce5..3626466423c3 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -8790,8 +8790,6 @@ self: super: with self; {
 
   nbmake = callPackage ../development/python-modules/nbmake { };
 
-  nbmerge = callPackage ../development/python-modules/nbmerge { };
-
   nbsmoke = callPackage ../development/python-modules/nbsmoke { };
 
   nbsphinx = callPackage ../development/python-modules/nbsphinx { };