added

pkgs/default.nix

@@ -1,9 +1,17 @@
 { pkgs ? import <nixpkgs> {}, lib ? pkgs.lib }:
 
-{
-  fish-rust = pkgs.callPackage ./fish-rust {};
-  python-rembg = pkgs.callPackage ./python-rembg {
+let
+  python-pymatting = pkgs.callPackage ./python-pymatting {
     inherit (pkgs) lib fetchPypi;
     python310Packages = pkgs.python310.pkgs;
   };
+in
+{
+  fish-rust = pkgs.callPackage ./fish-rust {};
+  python-pymatting = python-pymatting;
+  python-rembg = pkgs.callPackage ./python-rembg {
+    inherit (pkgs) lib fetchPypi;
+    python310Packages = pkgs.python310.pkgs;
+    inherit python-pymatting;
+  };
 }

pkgs/python-pymatting/default.nix

@@ -0,0 +1,28 @@
+{ lib, python310Packages, fetchPypi }:
+
+python310Packages.buildPythonPackage rec {
+  pname = "pymatting";
+  version = "1.1.13";
+  format = "setuptools";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "sha256-LNt8S++s3e9Netwt6ONKJy3mOdYIrlwKCGE9+kJTgQE="; # Updated hash
+  };
+
+  propagatedBuildInputs = with python310Packages; [
+    numpy
+    scipy
+    pillow
+    numba
+  ];
+
+  doCheck = false;
+
+  meta = with lib; {
+    description = "A library for alpha matting";
+    homepage = "https://github.com/pymatting/pymatting";
+    license = licenses.mit;
+    platforms = platforms.all;
+  };
+}

pkgs/python-rembg/default.nix

@@ -1,4 +1,4 @@
-{ lib, python310Packages, fetchPypi }:
+{ lib, python310Packages, fetchPypi, python-pymatting }:
 
 python310Packages.buildPythonPackage rec {
   pname = "rembg";
@@ -27,6 +27,7 @@ python310Packages.buildPythonPackage rec {
     filetype
     pooch
     pympler
+    python-pymatting
     scikit-image
     scipy
     tqdm