diff --git a/maintainers/maintainer-list.nix b/maintainers/maintainer-list.nix
index a32e3599061..162151d457c 100644
--- a/maintainers/maintainer-list.nix
+++ b/maintainers/maintainer-list.nix
@@ -5817,6 +5817,12 @@
     githubId = 81654;
     name = "Damjan Georgievski";
   };
+  gdd = {
+    email = "gabriel.doriath.dohler@ens.fr";
+    github = "gabriel-doriath-dohler";
+    githubId = 40209356;
+    name = "Gabriel Doriath Döhler";
+  };
   gdinh = {
     email = "nix@contact.dinh.ai";
     github = "gdinh";
diff --git a/pkgs/development/python-modules/litemapy/default.nix b/pkgs/development/python-modules/litemapy/default.nix
new file mode 100644
index 00000000000..6040cb1f47f
--- /dev/null
+++ b/pkgs/development/python-modules/litemapy/default.nix
@@ -0,0 +1,32 @@
+{ lib
+, buildPythonPackage
+, fetchFromGitHub
+, nbtlib
+}:
+
+buildPythonPackage rec {
+  pname = "litemapy";
+  version = "0.7.2b0";
+  format = "setuptools";
+
+  src = fetchFromGitHub {
+    owner = "SmylerMC";
+    repo = "litemapy";
+    rev = "v${version}";
+    hash = "sha256-VfEo/JLeU17bEkvc8oZYfq19RsHl6QvKv0sGZYQjYhE=";
+  };
+
+  propagatedBuildInputs = [
+    nbtlib
+  ];
+
+  pythonImportsCheck = [ "litemapy" ];
+
+  meta = with lib; {
+    description = "A Python library to read and edit Litematica's schematic file format";
+    homepage = "https://github.com/SmylerMC/litemapy";
+    changelog = "https://github.com/SmylerMC/litemapy/blob/${src.rev}/CHANGELOG.md";
+    license = licenses.gpl3Only;
+    maintainers = with maintainers; [ gdd ];
+  };
+}
diff --git a/pkgs/development/python-modules/nbtlib/default.nix b/pkgs/development/python-modules/nbtlib/default.nix
new file mode 100644
index 00000000000..b70259c9c76
--- /dev/null
+++ b/pkgs/development/python-modules/nbtlib/default.nix
@@ -0,0 +1,43 @@
+{ lib
+, buildPythonPackage
+, fetchFromGitHub
+, poetry-core
+, numpy
+}:
+
+buildPythonPackage rec {
+  pname = "nbtlib";
+  version = "2.0.4";
+  format = "pyproject";
+
+  src = fetchFromGitHub {
+    owner = "vberlier";
+    repo = "nbtlib";
+    rev = "v${version}";
+    hash = "sha256-L8eX6/0qiQ4UxbmDicLedzj+oBjYmlK96NpljE/A3eI=";
+  };
+
+  prePatch = ''
+      substituteInPlace pyproject.toml \
+      --replace "poetry>=0.12" "poetry-core" \
+      --replace "poetry.masonry" "poetry.core.masonry"
+  '';
+
+  nativeBuildInputs = [
+    poetry-core
+  ];
+
+  propagatedBuildInputs = [
+    numpy
+  ];
+
+  pythonImportsCheck = [ "nbtlib" ];
+
+  meta = with lib; {
+    description = "A python library to read and edit nbt data";
+    homepage = "https://github.com/vberlier/nbtlib";
+    changelog = "https://github.com/vberlier/nbtlib/blob/${src.rev}/CHANGELOG.md";
+    license = licenses.mit;
+    maintainers = with maintainers; [ gdd ];
+  };
+}
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index 8c59459db1a..4ea87c05174 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -5894,6 +5894,8 @@ self: super: with self; {
 
   lit = callPackage ../development/python-modules/lit { };
 
+  litemapy = callPackage ../development/python-modules/litemapy { };
+
   littleutils = callPackage ../development/python-modules/littleutils { };
 
   livelossplot = callPackage ../development/python-modules/livelossplot { };
@@ -6726,6 +6728,8 @@ self: super: with self; {
 
   nbsphinx = callPackage ../development/python-modules/nbsphinx { };
 
+  nbtlib = callPackage ../development/python-modules/nbtlib { };
+
   nbval = callPackage ../development/python-modules/nbval { };
 
   nbxmpp = callPackage ../development/python-modules/nbxmpp { };