diff --git a/.gitignore b/.gitignore
index fd2845d3941e8d1d96668c156e33eb5b146bf527..42fb8d44769ed547e9e564cc121fc54a559958e4 100644
--- a/.gitignore
+++ b/.gitignore
@@ -83,3 +83,4 @@ venv/
 # written by setuptools_scm
 **/_version.py
 
+bin*
diff --git a/setup.cfg b/setup.cfg
index f2973756cc3d255e0a78332541d2ac4ff91dfc72..202ec2d46039298a4711a8a9e86d4d0374b5ebb6 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -1,25 +1,26 @@
 [metadata]
-name = napari-segment
-
-author = Andrey Aristov
-author_email = aaristov@pasteur.fr
-url = https://github.com/aaristov/napari-segment
-license = BSD-3-Clause
+name = napari_segment
 description = Segment organoids and measure intensities
 long_description = file: README.md
 long_description_content_type = text/markdown
+url = https://github.com/aaristov/napari-segment
+author = Andrey Aristov
+author_email = aaristov@pasteur.fr
+license = BSD-3-Clause
+license_file = LICENSE
 classifiers =
     Development Status :: 2 - Pre-Alpha
-    Intended Audience :: Developers
     Framework :: napari
-    Topic :: Software Development :: Testing
+    Intended Audience :: Developers
+    License :: OSI Approved :: BSD License
+    Operating System :: OS Independent
     Programming Language :: Python
     Programming Language :: Python :: 3
+    Programming Language :: Python :: 3 :: Only
     Programming Language :: Python :: 3.8
     Programming Language :: Python :: 3.9
     Programming Language :: Python :: 3.10
-    Operating System :: OS Independent
-    License :: OSI Approved :: BSD License
+    Topic :: Software Development :: Testing
 project_urls =
     Bug Tracker = https://github.com/aaristov/napari-segment/issues
     Documentation = https://github.com/aaristov/napari-segment#README.md
@@ -28,22 +29,24 @@ project_urls =
 
 [options]
 packages = find:
-include_package_data = True
-python_requires = >=3.8
-package_dir =
-    =src
-setup_requires = setuptools_scm
-# add your package requirements here
 install_requires =
     nd2
     numpy
+    scikit-image
+    zarr
+python_requires = >=3.8
+include_package_data = True
+package_dir =
+    =src
+setup_requires =
+    setuptools-scm
 
 [options.packages.find]
 where = src
 
+[options.entry_points]
+napari.manifest =
+    napari-segment = napari_segment:napari.yaml
+
 [options.package_data]
 * = *.yaml
-
-[options.entry_points] 
-napari.manifest = 
-    napari-segment = napari_segment:napari.yaml
diff --git a/src/napari_segment/_reader.py b/src/napari_segment/_reader.py
index 0196ab78cadd4a0352e9ea656a95d8b2796ec074..cb88a94b8fac8dd3761e9796b3e09be39b17a2f8 100644
--- a/src/napari_segment/_reader.py
+++ b/src/napari_segment/_reader.py
@@ -41,7 +41,10 @@ def napari_get_reader(path):
         return read_zarr
 
     # otherwise we return the *function* that can read ``path``.
-    return reader_function
+    if path.endswith(".npy"):
+        return reader_function
+
+    return None
 
 
 def read_zarr(path):