diff --git a/.github/workflows/tox.yml b/.github/workflows/tox.yml
index 7b7c1c35..c76cda95 100644
--- a/.github/workflows/tox.yml
+++ b/.github/workflows/tox.yml
@@ -52,9 +52,9 @@ jobs:
         python -m pip install ninja meson meson-python>=0.15.0 numpy==1.26.4 Cython>=0.29 spin pybind11
         python -m pip install tifffile>=2024.7.2 pyvips>=2.2.3 tqdm>=2.66.4 pillow>=10.3.0 openslide-python>=1.3.1
         python -m pip install opencv-python-headless>=4.9.0.80 shapely>=2.0.4 pybind11>=2.8.0 pydantic coverage pytest psutil darwin-py pytest-mock tox
-        meson setup builddir
-        meson compile -C builddir
-        meson install -C buildir
+        # meson setup builddir
+        # meson compile -C builddir
+        # meson install -C buildir
         python -m pip install .
     - name: Run tox
       run: |
diff --git a/.spin/cmds.py b/.spin/cmds.py
index cfac4ab7..f7f94c01 100644
--- a/.spin/cmds.py
+++ b/.spin/cmds.py
@@ -1,7 +1,8 @@
+import site
 import subprocess
 import webbrowser
 from pathlib import Path
-import site
+
 import click
 from spin.cmds import meson
 
diff --git a/dlup/annotations_experimental.py b/dlup/annotations_experimental.py
index ef0de39d..1682aeb0 100644
--- a/dlup/annotations_experimental.py
+++ b/dlup/annotations_experimental.py
@@ -249,6 +249,20 @@ def __init__(
         sorting: Optional[AnnotationSorting | str] = None,
         **kwargs: Any,
     ) -> None:
+        """
+        Parameters
+        ----------
+        layers : GeometryCollection
+            Geometry collection containing the polygons, boxes and points
+        tags: Optional[tuple[SlideTag, ...]]
+            A tuple of image-level tags such as staining quality
+        sorting: AnnotationSorting
+            Sorting method, see `AnnotationSorting`. This value is typically passed to the constructor
+            because of operations layer on (such as `__add__`). Typically the classmethod already sorts the data
+        **kwargs: Any
+            Additional keyword arguments. In this class they are used for additional metadata or offset functions.
+            Currently only HaloXML requires offsets. See `.from_halo_xml` for an example
+        """
         self._layers = layers
         self._tags = tags
         self._sorting = sorting
@@ -265,14 +279,19 @@ def tags(self) -> Optional[tuple[SlideTag, ...]]:
 
     @property
     def num_polygons(self) -> int:
-        return len(self._layers.polygons)
+        return len(self.layers.polygons)
 
     @property
     def num_points(self) -> int:
-        return len(self._layers.points)
+        return len(self.layers.points)
+
+    @property
+    def num_boxes(self) -> int:
+        return len(self.layers.boxes)
 
     @property
     def metadata(self) -> Optional[dict[str, list[str] | str | int | float | bool]]:
+        """Additional metadata for the annotations"""
         return self._metadata
 
     @property
@@ -303,7 +322,8 @@ def offset_function(self, func: Any) -> None:
 
     @property
     def layers(self) -> GeometryCollection:
-        """Get the layers of the annotations.
+        """
+        Get the layers of the annotations.
         This is a GeometryCollection object which contains all the polygons and points
         """
         return self._layers
@@ -1078,6 +1098,47 @@ def read_region(
         scaling: float,
         size: tuple[GenericNumber, GenericNumber],
     ) -> AnnotationRegion:
+        """Reads the region of the annotations. Function signature is the same as `dlup.SlideImage`
+        so they can be used in conjunction.
+
+        The process is as follows:
+
+        1.  All the annotations which overlap with the requested region of interest are filtered
+        2.  The polygons in the GeometryContainer in `.layers` are cropped.
+            The boxes and points are only filtered, so it's possible the boxes have negative (x, y) values
+        3.  The annotation is rescaled and shifted to the origin to match the local patch coordinate system.
+
+        The final returned data is a `dlup.geometry.AnnotationRegion`.
+
+        Parameters
+        ----------
+        location: tuple[GenericNumber, GenericNumber]
+            Top-left coordinates of the region in the requested scaling
+        size : tuple[GenericNumber, GenericNumber]
+            Output size of the region
+        scaling : float
+            Scaling to apply compared to the base level
+
+        Returns
+        -------
+        AnnotationRegion
+
+        Examples
+        --------
+        1. To read geojson annotations and convert them into masks:
+
+        >>> from pathlib import Path
+        >>> from dlup import SlideImage
+        >>> import numpy as np
+        >>> wsi = SlideImage.from_file_path(Path("path/to/image.svs"))
+        >>> wsi = wsi.get_scaled_view(scaling=0.5)
+        >>> wsi = wsi.read_region(location=(0,0), size=wsi.size)
+        >>> annotations = SlideAnnotations.from_geojson("path/to/geojson.json")
+        >>> region = annotations.read_region((0,0), 0.01, wsi.size)
+        >>> mask = region.to_mask()
+        >>> color_mask = annotations.color_lut[mask]
+        >>> polygons = region.polygons  # This is a list of `dlup.geometry.Polygon` objects
+        """
         region = self._layers.read_region(coordinates, scaling, size)
         return region
 
diff --git a/dlup/meson.build b/dlup/meson.build
index cb07faba..1aa5a2eb 100644
--- a/dlup/meson.build
+++ b/dlup/meson.build
@@ -9,4 +9,4 @@ background = py.extension_module('_background',
     subdir : 'dlup',
     link_args : link_args,
     c_args : cpp_args + ['-DNPY_NO_DEPRECATED_API=NPY_1_7_API_VERSION'],
-    dependencies : [py_dep])  # Add Python dependency
\ No newline at end of file
+    dependencies : [py_dep])  # Add Python dependency
diff --git a/src/meson.build b/src/meson.build
index 4c9b371a..07c9f793 100644
--- a/src/meson.build
+++ b/src/meson.build
@@ -24,4 +24,4 @@ geometry = py.extension_module('_geometry',
     include_directories : [third_party_dir, incdir_pybind11],
     cpp_args : cpp_args,
     link_args : link_args,
-    dependencies : base_deps + [boost_dep, opencv_dep])
\ No newline at end of file
+    dependencies : base_deps + [boost_dep, opencv_dep])
diff --git a/third_party/meson.build b/third_party/meson.build
index 507c86bf..182000d1 100644
--- a/third_party/meson.build
+++ b/third_party/meson.build
@@ -61,4 +61,3 @@ incdir_pybind11 = incdir_pybind11
 base_deps = base_deps
 boost_dep = boost_dep
 opencv_dep = opencv_dep
-
diff --git a/tox.ini b/tox.ini
index 554cf1f1..64dbb484 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,8 +1,10 @@
 [tox]
-envlist = py310, py311
+envlist = py311
 isolated_build = True
 
 [testenv]
+env =
+    GITHUB_ACTIONS=1
 deps =
     meson
     meson-python>=0.15.0
@@ -11,11 +13,9 @@ deps =
     spin
     pybind11
     build
+    pyhaloxml
 extras = dev,darwin
 commands =
-    sh -c 'meson setup builddir'
-    sh -c 'meson compile -C builddir'
-    sh -c 'cp builddir/*.so dlup'
     pytest
 allowlist_externals =
     sh