diff --git a/.github/workflows/test_pull_requests.yml b/.github/workflows/test_pull_requests.yml
index 77c1b6f9..a025fc87 100644
--- a/.github/workflows/test_pull_requests.yml
+++ b/.github/workflows/test_pull_requests.yml
@@ -54,30 +54,32 @@ jobs:
             flake8 --ignore E501,E203,W503 aydin
 
   test-linux39:
-      needs: [style, lint]
-      name: Tests
-      runs-on: ubuntu-latest
-      if: github.repository == 'royerlab/aydin'
+    needs: [style, lint]
+    name: Tests
+    runs-on: ubuntu-latest
+    if: github.repository == 'royerlab/aydin'
 
-      strategy:
-        matrix:
-          python-version: [ "3.9" ]
+    strategy:
+      matrix:
+        python-version: [ "3.9" ]
 
-      steps:
-        - uses: actions/checkout@v2
-        - name: Set up Python
-          uses: actions/setup-python@v2
-          with:
-            python-version: ${{ matrix.python-version }}
-        - name: Install dependencies
-          run: |
-            python -m pip install --upgrade pip
-            pip install -e .
-            pip install pytest==6.2.5
-            pip install mock==4.0.3
-        - name: Run the tests
-          run: |
-            python -m pytest . --disable-pytest-warnings --durations=30 --show-capture=stderr
+    steps:
+      - uses: actions/checkout@v2
+      - name: Set up Python
+        uses: actions/setup-python@v2
+        with:
+          python-version: ${{ matrix.python-version }}
+      - name: Install dependencies
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y libegl1
+          python -m pip install --upgrade pip
+          pip install -e .
+          pip install pytest==6.2.5
+          pip install mock==4.0.3
+      - name: Run the tests
+        run: |
+          python -m pytest . --disable-pytest-warnings --durations=30 --show-capture=stderr
 
   test-unstable-linux39:
     needs: [ test-linux39 ]
@@ -97,6 +99,8 @@ jobs:
           python-version: ${{ matrix.python-version }}
       - name: Install dependencies
         run: |
+          sudo apt-get update
+          sudo apt-get install -y libegl1
           python -m pip install --upgrade pip
           pip install -e .
           pip install pytest==6.2.5
@@ -123,6 +127,8 @@ jobs:
               python-version: ${{ matrix.python-version }}
           - name: Install dependencies
             run: |
+              sudo apt-get update
+              sudo apt-get install -y libegl1
               python -m pip install --upgrade pip
               pip install -e .
               pip install pytest==6.2.5
@@ -149,6 +155,8 @@ jobs:
               python-version: ${{ matrix.python-version }}
           - name: Install dependencies
             run: |
+              sudo apt-get update
+              sudo apt-get install -y libegl1
               python -m pip install --upgrade pip
               pip install -e .
               pip install pytest==6.2.5
diff --git a/aydin/gui/_qt/custom_widgets/overlay.py b/aydin/gui/_qt/custom_widgets/overlay.py
index 78ffa2ac..428c4a9d 100644
--- a/aydin/gui/_qt/custom_widgets/overlay.py
+++ b/aydin/gui/_qt/custom_widgets/overlay.py
@@ -11,7 +11,7 @@ def __init__(self, parent=None):
 
         QWidget.__init__(self, parent)
         palette = QPalette(self.palette())
-        palette.setColor(palette.Background, Qt.transparent)
+        # palette.setColor(palette.Background, Qt.transparent)
         self.setPalette(palette)
 
     def paintEvent(self, event):
diff --git a/aydin/gui/_qt/custom_widgets/system_summary.py b/aydin/gui/_qt/custom_widgets/system_summary.py
index eb985c4b..2b871d94 100644
--- a/aydin/gui/_qt/custom_widgets/system_summary.py
+++ b/aydin/gui/_qt/custom_widgets/system_summary.py
@@ -4,6 +4,7 @@
 from numba.cuda import CudaSupportError
 from qtpy.QtCore import Qt
 from qtpy.QtWidgets import QWidget, QVBoxLayout, QHBoxLayout, QLabel, QGroupBox
+import platform
 
 from aydin.util.misc.units import human_readable_byte_size
 
@@ -23,8 +24,13 @@ def __init__(self, parent):
         self.cpu_group_box.setLayout(self.cpu_group_box_layout)
 
         # CPU freq
+        cpu_freq = (
+            round(psutil.cpu_freq().current, 2)
+            if platform.processor() != "arm"
+            else "N/A"
+        )
         self.cpu_freq_stats_label = QLabel(
-            f"Current CPU frequency:\t {round(psutil.cpu_freq().current, 2)} Mhz", self
+            f"Current CPU frequency:\t {cpu_freq} Mhz", self
         )
         self.cpu_group_box_layout.addWidget(self.cpu_freq_stats_label)
 
diff --git a/aydin/gui/gui.py b/aydin/gui/gui.py
index 610359d5..5affcd98 100644
--- a/aydin/gui/gui.py
+++ b/aydin/gui/gui.py
@@ -23,8 +23,8 @@ def __init__(self, ver):
 
         self.title = "Aydin Studio - image denoising, but chill..."
 
-        self.desktop = QApplication.desktop()
-        self.screenRect = self.desktop.screenGeometry()
+        self.desktop = QApplication.primaryScreen()
+        self.screenRect = self.desktop.availableGeometry()
         height, width = self.screenRect.height(), self.screenRect.width()
 
         self.width = width // 3
@@ -131,7 +131,7 @@ def run(ver):
 
     """
     app = QApplication(sys.argv)
-    app.setStyleSheet(qdarkstyle.load_stylesheet_pyqt5())
+    app.setStyleSheet(qdarkstyle.load_stylesheet())
     ex = App(ver)
     ex.show()
     sys.exit(app.exec())
diff --git a/aydin/gui/tabs/qt/denoise.py b/aydin/gui/tabs/qt/denoise.py
index 5520196f..b566e91f 100644
--- a/aydin/gui/tabs/qt/denoise.py
+++ b/aydin/gui/tabs/qt/denoise.py
@@ -89,6 +89,12 @@ def __init__(self, parent):
             'Noise2SelfFGR-random_forest',
         ]
 
+        self.basic_backend_options = [
+            option
+            for option in self.backend_options
+            if option in self.basic_backend_options
+        ]
+
         self.basic_backend_options_descriptions = [
             description
             for option, description in zip(
diff --git a/aydin/restoration/denoise/noise2selffgr.py b/aydin/restoration/denoise/noise2selffgr.py
index 15c2fe14..84887517 100644
--- a/aydin/restoration/denoise/noise2selffgr.py
+++ b/aydin/restoration/denoise/noise2selffgr.py
@@ -1,7 +1,9 @@
 import importlib
 import inspect
 import os
+import platform
 import shutil
+import sys
 from typing import Optional
 
 from aydin import regression
@@ -12,15 +14,18 @@
 from aydin.it.transforms.range import RangeTransform
 from aydin.it.transforms.variance_stabilisation import VarianceStabilisationTransform
 from aydin.regression.cb import CBRegressor
-from aydin.regression.lgbm import LGBMRegressor
 from aydin.regression.linear import LinearRegressor
 from aydin.regression.perceptron import PerceptronRegressor
-from aydin.regression.random_forest import RandomForestRegressor
 from aydin.regression.support_vector import SupportVectorRegressor
 from aydin.restoration.denoise.base import DenoiseRestorationBase
 from aydin.util.log.log import lsection
 
 
+if sys.platform != "darwin":
+    from aydin.regression.lgbm import LGBMRegressor
+    from aydin.regression.random_forest import RandomForestRegressor
+
+
 class Noise2SelfFGR(DenoiseRestorationBase):
     """
     Noise2Self image denoising using the "Feature Generation & Regression" (
@@ -107,6 +112,11 @@ def configurable_arguments(self):
             regression
         )
 
+        if platform.system() == "Darwin":
+            for module in regression_modules:
+                if module.name in ["lgbm", "random_forest"]:
+                    regression_modules.remove(module)
+
         for module in regression_modules:
             regressor_args = self.get_class_implementation_kwargs(
                 regression, module, module.name.replace("_", "") + "Regressor"
@@ -123,10 +133,14 @@ def configurable_arguments(self):
     @property
     def implementations(self):
         """Returns the list of discovered implementations for given method."""
-        return [
-            "Noise2SelfFGR-" + x.name
-            for x in self.get_implementations_in_a_module(regression)
-        ]
+        regression_modules = self.get_implementations_in_a_module(regression)
+
+        if platform.system() == "Darwin":
+            for module in regression_modules:
+                if module.name in ["lgbm", "random_forest"]:
+                    regression_modules.remove(module)
+
+        return ["Noise2SelfFGR-" + x.name for x in regression_modules]
 
     @property
     def implementations_description(self):
@@ -139,7 +153,13 @@ def implementations_description(self):
 
         descriptions = []
 
-        for module in self.get_implementations_in_a_module(regression):
+        regression_modules = self.get_implementations_in_a_module(regression)
+        if platform.system() == "Darwin":
+            for module in regression_modules:
+                if module.name in ["lgbm", "random_forest"]:
+                    regression_modules.remove(module)
+
+        for module in regression_modules:
             response = importlib.import_module(regression.__name__ + '.' + module.name)
             elem = [
                 x
diff --git a/requirements/development.txt b/requirements/development.txt
index 11af1e55..e8b3b692 100644
--- a/requirements/development.txt
+++ b/requirements/development.txt
@@ -1,4 +1,4 @@
-black=22.12.0
+black==22.12.0
 flake8==4.0.1
 mock==4.0.3
 pytest==6.2.5
diff --git a/setup.cfg b/setup.cfg
index 507409dd..232b91a1 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -37,23 +37,23 @@ install_requires =
     importlib-metadata>=4.10.0
     imageio==2.21.1
     jsonpickle==1.3.0
-    lightgbm>=3.3.1
-    napari==0.4.15
+    lightgbm>=3.3.1 ; sys_platform != "darwin"
+    napari==0.4.17
     nd2reader>=3.3.0
     numba>=0.55.1
     numpy>=1.21.2
     protobuf==3.20.1
     pynndescent>=0.5.5
-    PyQt5>=5.15.6
+    PyQt6>=6.4.0
     QDarkStyle==3.0.2
     qtpy>=1.11.2
-    scikit-image==0.18.3
+    scikit-image>=0.18.3
     scipy==1.9.3  # TODO: change after fix for 1.10.0 on osx
-    tensorflow==2.8.1
+    tensorflow==2.8.0 ; sys_platform != "darwin"
+    tensorflow-macos==2.8.0 ; sys_platform == "darwin"
     torch>=1.10.1
     keras==2.8.0
     zarr>=2.12.0
-    imagecodecs==2022.2.22
     memoization>=0.4.0
 
 [options.extras_require]
diff --git a/setup.py b/setup.py
index 1baaef30..8b6e882d 100644
--- a/setup.py
+++ b/setup.py
@@ -12,14 +12,6 @@
     )
     sys.exit(1)
 
-# with open(os.path.join('requirements', 'default.txt')) as f:
-#     default_requirements = [
-#         line.strip() for line in f if line and not line.startswith('#')
-#     ]
-#
-# INSTALL_REQUIRES = default_requirements
-# REQUIRES = []
-
 setup(
     use_scm_version={"write_to": "aydin/_version.py"},
     setup_requires=['setuptools_scm'],