diff --git a/.github/workflows/test_and_deploy.yml b/.github/workflows/test_and_deploy.yml
index 0480091..e12b20a 100644
--- a/.github/workflows/test_and_deploy.yml
+++ b/.github/workflows/test_and_deploy.yml
@@ -23,7 +23,7 @@ jobs:
     strategy:
       matrix:
         platform: [ubuntu-latest, windows-latest, macos-latest]
-        python-version: ['3.8', '3.9', '3.10']
+        python-version: ['3.9', '3.10']
 
     steps:
       - uses: actions/checkout@v3
diff --git a/LICENSE b/LICENSE
index e6bb677..8946808 100644
--- a/LICENSE
+++ b/LICENSE
@@ -2,9 +2,12 @@
 Copyright (c) 2024, Brian Northan
 All rights reserved.
 
-This work re-uses some code from  napari sam (see license here https://github.com/MIC-DKFZ/napari-sam/blob/main/LICENSE)
+This work re-uses some code from the following sources:
+- napari sam (License: https://github.com/MIC-DKFZ/napari-sam/blob/main/LICENSE)
+- napari-segment-anything (License: https://github.com/royerlab/napari-segment-anything/blob/main/LICENSE)  
+- MobileSAMv2 (License: https://github.com/ChaoningZhang/MobileSAM/blob/master/LICENSE)
 
-And also re-uses some code from  napari-segment-anything (see license here https://github.com/royerlab/napari-segment-anything/blob/main/LICENSE)  
+Additionally, training data is from Cellpose's annotated dataset, which is licensed CC-by-NC (see: https://github.com/MouseLand/cellpose?tab=readme-ov-file)
 
 Redistribution and use in source and binary forms, with or without
 modification, are permitted provided that the following conditions are met:
diff --git a/src/napari_segment_everything/_tests/test_mobile_sam.py b/src/napari_segment_everything/_tests/test_mobile_sam.py
index bf87bb2..8a09143 100644
--- a/src/napari_segment_everything/_tests/test_mobile_sam.py
+++ b/src/napari_segment_everything/_tests/test_mobile_sam.py
@@ -17,18 +17,30 @@
 import requests
 from gdown.parse_url import parse_url
 
+device = get_device()
+if device == "mps":
+    device = "cpu"
 
+#%%
 def test_urls():
     """
-    Tests whether all the urls for the model weights exist.
+    Tests whether all the urls for the model weights exist and are accessible.
     """
-    for url in SAM_WEIGHTS_URL.values():
-        if url.startswith("https://drive.google.com/"):
-            _, path_exists = parse_url(url)
-            assert path_exists
-        else:
-            req = requests.head(url)
-            assert req.status_code == 200
+    TIMEOUT = 1
+    for name, url in SAM_WEIGHTS_URL.items():
+        try:
+            if url.startswith("https://drive.google.com/"):
+                _, path_exists = parse_url(url)
+                assert (
+                    path_exists
+                ), f"Google Drive URL path wasn't parsed correctly: {url}"
+            else:
+                req = requests.head(url, timeout=TIMEOUT)
+                assert (
+                    req.status_code == 200
+                ), f"Failed to access URL: {url}, Status code: {req.status_code}"
+        except requests.exceptions.Timeout:
+            print(f"Request timed out for URL: {url}")
 
 
 def test_mobile_sam():
@@ -42,7 +54,7 @@ def test_mobile_sam():
         image,
         detector_model="YOLOv8",
         imgsz=1024,
-        device="cuda",
+        device=device,
         conf=0.4,
         iou=0.9,
     )
@@ -57,7 +69,7 @@ def test_bbox():
     """
     image = data.coffee()
     bounding_boxes = get_bounding_boxes(
-        image, detector_model="Finetuned", device="cuda", conf=0.01, iou=0.99
+        image, detector_model="YOLOv8", device=device, conf=0.9, iou=0.90
     )
     print(f"Length of bounding boxes: {len(bounding_boxes)}")
     assert len(bounding_boxes) > 0
@@ -70,12 +82,9 @@ def test_RCNN():
     image = data.coffee()
     model_path = str(get_weights_path("ObjectAwareModel_Cell_FT"))
     assert os.path.exists(model_path)
-    rcnn_cpu = RcnnDetector(model_path, device="cpu")
-    rcnn_cuda = RcnnDetector(model_path, device="cuda")
-    bbox_cpu = rcnn_cpu.get_bounding_boxes(image, conf=0.5, iou=0.2)
-    bbox_cuda = rcnn_cuda.get_bounding_boxes(image, conf=0.5, iou=0.2)
-    assert len(bbox_cpu) == 6
-    assert len(bbox_cuda) == 6
+    rcnn = RcnnDetector(model_path, device=device)
+    bbox = rcnn.get_bounding_boxes(image, conf=0.5, iou=0.2)
+    assert len(bbox) == 6
 
 
 def test_YOLO():
@@ -85,16 +94,11 @@ def test_YOLO():
     image = data.coffee()
     model_path = str(get_weights_path("ObjectAwareModel"))
     assert os.path.exists(model_path)
-    yolo_cpu = YoloDetector(model_path, device="cpu")
-    yolo_cuda = YoloDetector(model_path, device="cuda")
-    bbox_cpu = yolo_cpu.get_bounding_boxes(
-        image, conf=0.5, iou=0.2, max_det=400, imgsz=1024
-    )
-    bbox_cuda = yolo_cuda.get_bounding_boxes(
+    yolo = YoloDetector(model_path, device=device)
+    bbox = yolo.get_bounding_boxes(
         image, conf=0.5, iou=0.2, max_det=400, imgsz=1024
     )
-    assert len(bbox_cpu) == 8
-    assert len(bbox_cuda) == 8
+    assert len(bbox) == 8
 
 
 def test_weights_path():
@@ -110,7 +114,6 @@ def test_labels():
     Tests whether region properties can be generated for segmentations for different models
     """
     image = data.coffee()
-    device = get_device()
 
     bbox_yolo = get_bounding_boxes(
         image,
@@ -150,8 +153,7 @@ def test_labels():
     assert len(props_yolo) == 10
     props_vit_b = segmentations_vit_b[0].keys()
     assert len(props_vit_b) == 13
-
-
+    
 test_urls()
 test_bbox()
 test_mobile_sam()
diff --git a/src/napari_segment_everything/minimal_detection/detect_and_segment.py b/src/napari_segment_everything/minimal_detection/detect_and_segment.py
index 5b39b53..533cbb2 100644
--- a/src/napari_segment_everything/minimal_detection/detect_and_segment.py
+++ b/src/napari_segment_everything/minimal_detection/detect_and_segment.py
@@ -35,7 +35,7 @@ def batch_iterator(batch_size: int, *args) -> Generator[List[Any], None, None]:
         yield [arg[b * batch_size : (b + 1) * batch_size] for arg in args]
 
 
-def segment_from_bbox(bounding_boxes, predictor, mobilesamv2):
+def segment_from_bbox(bounding_boxes, predictor, mobilesamv2, device):
     """
     Segments everything given the bounding boxes of the objects and the mobileSAMv2 prediction model.
     Code from mobileSAMv2
@@ -43,7 +43,10 @@ def segment_from_bbox(bounding_boxes, predictor, mobilesamv2):
     input_boxes = predictor.transform.apply_boxes(
         bounding_boxes, predictor.original_size
     )  # Does this need to be transformed?
-    input_boxes = torch.from_numpy(input_boxes).cuda()
+    if device == "cuda":
+        input_boxes = torch.from_numpy(input_boxes).cuda()
+    elif device == "cpu":
+        input_boxes = torch.from_numpy(input_boxes)
     sam_mask = []
 
     predicted_ious = []
diff --git a/src/napari_segment_everything/minimal_detection/prompt_generator.py b/src/napari_segment_everything/minimal_detection/prompt_generator.py
index 278b2e4..e89da6b 100644
--- a/src/napari_segment_everything/minimal_detection/prompt_generator.py
+++ b/src/napari_segment_everything/minimal_detection/prompt_generator.py
@@ -109,11 +109,13 @@ class RcnnDetector(BaseDetector):
     def __init__(self, model_path, device, trainable=True):
         super().__init__(model_path, trainable)
         self.model_type = "FasterRCNN"
+        if device == "mps":
+            device = "cpu"
         self.device = device
         self.model = fasterrcnn_mobilenet_v3_large_fpn(
             box_detections_per_img=500,
-        ).to(device)
-        self.model.load_state_dict(torch.load(model_path))
+        ).to(self.device)
+        self.model.load_state_dict(torch.load(model_path, map_location=self.device))
 
     def train(self, training_data):
         if self.trainable:
diff --git a/src/napari_segment_everything/sam_helper.py b/src/napari_segment_everything/sam_helper.py
index 165e5a1..12be8b8 100644
--- a/src/napari_segment_everything/sam_helper.py
+++ b/src/napari_segment_everything/sam_helper.py
@@ -132,8 +132,11 @@ def get_sam_automatic_mask_generator(
     crop_n_layers=1,
 ):
 
+    device = get_device()
+    if device == "mps":
+        device = "cpu"
     sam = sam_model_registry[model_type](get_weights_path(model_type))
-    sam.to(get_device())
+    sam.to()
     sam_anything_predictor = SamAutomaticMaskGenerator(
         sam,
         points_per_side=int(points_per_side),
@@ -178,7 +181,7 @@ def get_bounding_boxes(
     return bounding_boxes
 
 
-def get_mobileSAMv2(image=None, bounding_boxes=None):
+def get_mobileSAMv2(image=None, bounding_boxes=None, device=get_device()):
     """
     Uses a SAM model to make predictions from bounding boxes.
 
@@ -201,7 +204,6 @@ def get_mobileSAMv2(image=None, bounding_boxes=None):
         return
     if image.ndim < 3:
         image = cv2.cvtColor(image, cv2.COLOR_BGR2RGB)
-    device = "cuda" if torch.cuda.is_available() else "cpu"
     # device = "cpu"
     weights_path_VIT = get_weights_path("efficientvit_l2")
     samV2 = create_MS_model()
@@ -209,11 +211,15 @@ def get_mobileSAMv2(image=None, bounding_boxes=None):
     samV2.image_encoder = sam_model_registry["efficientvit_l2"](
         weights_path_VIT
     )
+    if device == "mps":
+        device="cpu"
     samV2.to(device=device)
     samV2.eval()
     predictor = SamPredictorV2(samV2)
     predictor.set_image(image)
-    sam_masks = segment_from_bbox(bounding_boxes, predictor, samV2)
+    sam_masks = segment_from_bbox(
+        bounding_boxes, predictor, samV2, device=device
+    )
     del bounding_boxes
 
     gc.collect()
@@ -304,7 +310,7 @@ def add_properties_to_label_image(orig_image, sorted_results):
         # for small pixelated objects, circularity can be > 1 so we cap it
         if result["circularity"] > 1:
             result["circularity"] = 1
-            
+
         result["solidity"] = regions[0].solidity
         intensity_pixels = intensity[coords]
         result["mean_intensity"] = np.mean(intensity_pixels)
diff --git a/src/napari_segment_everything/segment_everything.py b/src/napari_segment_everything/segment_everything.py
index 6785b76..996ed67 100644
--- a/src/napari_segment_everything/segment_everything.py
+++ b/src/napari_segment_everything/segment_everything.py
@@ -17,6 +17,7 @@
 from napari_segment_everything.sam_helper import (
     get_bounding_boxes,
     get_mobileSAMv2,
+    get_device,
 )
 import pickle
 
@@ -35,7 +36,7 @@
     QMessageBox,
     QTextBrowser,
     QProgressBar,
-    QApplication
+    QApplication,
 )
 
 
@@ -161,7 +162,6 @@ def on_index_changed(index):
 
         self.stacked_algorithm_params_layout = QStackedWidget()
 
-
         self.bbox_conf_spinner = LabeledSpinner(
             "Bounding Box Confidence", 0, 1, 0.1, None, is_double=True
         )
@@ -186,7 +186,6 @@ def on_index_changed(index):
         self.yolo_params_layout.addWidget(self.bbbox_max_det_spinner)
         self.widgetGroup1.setLayout(self.yolo_params_layout)
 
-
         self.points_per_side_spinner = LabeledSpinner(
             "Points per side", 4, 100, 32, None
         )
@@ -392,30 +391,29 @@ def open_project(self):
                 image = project["image"]
                 self.load_project(image, results)
 
-
-    
     def load_project(self, image, results):
         self.results = results
-        self.results = sorted(self.results, key=lambda x: x['area'], reverse=False)
+        self.results = sorted(
+            self.results, key=lambda x: x["area"], reverse=False
+        )
         label_num = 1
         for result in self.results:
-            result['keep'] = True
-            result['label_num'] = label_num
+            result["keep"] = True
+            result["label_num"] = label_num
             label_num += 1
 
-       
         self.image = image
         add_properties_to_label_image(self.image, self.results)
         self.viewer.add_image(image)
-        
+
         self._3D_labels_layer.data = make_label_image_3d(self.results)
         self.viewer.dims.ndisplay = 3
         self._3D_labels_layer.translate = (-len(self.results), 0, 0)
-        
+
         self.add_points()
         self.add_boxes()
         self.update_slider_min_max()
-    
+
     def save_project(self):
         options = QFileDialog.Options()
         file_name, _ = QFileDialog.getSaveFileName(
@@ -485,7 +483,7 @@ def process(self):
             bounding_boxes = get_bounding_boxes(
                 self.image,
                 detector_model="Finetuned",
-                device="cuda",
+                device=get_device(),
                 conf=bbox_conf,
                 iou=bbox_iou,
             )
@@ -511,11 +509,10 @@ def process(self):
             )
             self.textBrowser_log.repaint()
             QApplication.processEvents()
-
             bounding_boxes = get_bounding_boxes(
                 self.image,
                 detector_model="YOLOv8",
-                device="cuda",
+                device=get_device(),
                 conf=bbox_conf,
                 iou=bbox_iou,
                 imgsz=bbox_imgsz,
diff --git a/tox.ini b/tox.ini
index 3c2e09a..cbcf971 100644
--- a/tox.ini
+++ b/tox.ini
@@ -5,7 +5,7 @@ isolated_build=true
 
 [gh-actions]
 python =
-    3.8: py38
+#    3.8: py38
     3.9: py39
     3.10: py310