diff --git a/docs/dev/index.rst b/docs/dev/index.rst
new file mode 100644
index 00000000..87a7629f
--- /dev/null
+++ b/docs/dev/index.rst
@@ -0,0 +1,75 @@
+Contributing to ``stellarphot``
+-------------------------------
+
+Setup
+~~~~~
+
+These steps typically only need to be done once.
+
+1. To setup ``stellarphot`` for development, first create your own copy in GitHub
+   by forking the repository.
+2. Clone your fork to your local machine.
+3. Add the main ``stellarphot`` repository as a remote called ``upstream``.
+
+Steps when Contributing
+~~~~~~~~~~~~~~~~~~~~~~~
+
+These typically need to be done every time you make a contribution.
+
+1.  Create a new branch for your contribution that is based on the branch
+    ``upstream/main``. Give the branch a descriptive name. For example, if you
+    are adding a new feature, you might call the branch ``add-new-feature``. These
+    git command to do this would be ``git checkout -b add-new-feature upstream/main``.
+2.  Write a test for your contribution. This should be a new test in the
+    appropriate ``tests`` directory. If you are adding a new feature, you should add a new
+    test file. If you are fixing a bug, you should add a new test to an
+    existing test file. The test should be written using the ``pytest`` framework.
+    See the ``tests`` directories for examples. **Make sure your test fails before
+    you make your contribution.**
+3.  Make your contribution. This could be a new feature, a bug fix, or a
+    documentation update. **Make sure your test passes after you make your
+    contribution.**
+4.  Commit your contribution to your branch. Your commit message should be
+    short but descriptive. For example, if you are adding a new feature, you might
+    use a commit message like ``Add new feature to do X``.
+5.  Push your branch to your fork on GitHub.
+6.  Create a pull request from your branch to the ``main`` branch of the main
+    ``stellarphot`` repository. Give the pull request a descriptive name and
+    description. If your pull request fixes an issue, reference the issue in
+    the description using the ``#`` symbol. For example, if your pull request
+    fixes issue 123, you would write ``Fixes #123`` in the description.
+7.  Wait for your pull request to be reviewed. If there are any issues, you
+    may need to make additional commits to your branch to address them. If
+    you need to make additional commits, make sure you push them to your
+    fork on GitHub. The pull request will be updated automatically.
+
+
+Adding new settings
+~~~~~~~~~~~~~~~~~~~
+
+We use combination of `pydantic`_ and `ipyautoui`_ to handle settings in
+``stellarphot``. The settings are defined in the ``settings/models.py`` file. Try to
+group settings in a logical way. The settings related to photometry are grouped
+together in a single `stellarphot.settings.PhotometrySettings`  class.
+
+Typically to add new settings you do not need to do much beyond adding a
+new class in ``settings/models.py`` and modifying any code that uses those settings to
+take the new settings object as an argument. The graphical notebook interface
+is generated on the fly from the settings object, so you do not need to write much
+new code for that.
+
+For example, the `stellarphot.settings.ApertureSettings` class defines the settings
+related to the aperture photometry. It is used in
+`stellarphot.gui_tools.SeeingProfileWidget`. The relevant lines are:
+
+.. code-block:: python
+
+    self.aperture_settings = ui_generator(ApertureSettings)
+    self.aperture_settings.show_savebuttonbar = True
+    self.aperture_settings.path = Path(self.aperture_settings_file_name.value)
+    self.save_aps = ipw.Button(description="Save settings")
+    vb.children = [self.aperture_settings_file_name, self.aperture_settings] #, self.save_aps] #, self.in_t, self.out_t]
+
+
+.. _pydantic: https://docs.pydantic.dev/latest/
+.. _ipyautoui: https://maxfordham.github.io/ipyautoui/
diff --git a/docs/index.rst b/docs/index.rst
index 492b1267..0a46c109 100644
--- a/docs/index.rst
+++ b/docs/index.rst
@@ -9,7 +9,11 @@ This is a package for doing stellar photometry that relies on astropy.
 
   stellarphot/index.rst
 
-.. note:: The layout of this directory is simply a suggestion.  To follow
-          traditional practice, do *not* edit this page, but instead place
-          all documentation for the package inside ``stellarphot/``.
-          You can follow this practice or choose your own layout.
+
+Developer Documentation
+=======================
+
+.. toctree::
+   :maxdepth: 1
+
+   dev/index.rst
diff --git a/docs/stellarphot/index.rst b/docs/stellarphot/index.rst
index 6abf8833..f7204183 100644
--- a/docs/stellarphot/index.rst
+++ b/docs/stellarphot/index.rst
@@ -27,6 +27,7 @@ Reference/API
 .. automodapi:: stellarphot.io
 .. automodapi:: stellarphot.photometry.photometry
 .. automodapi:: stellarphot.photometry.source_detection
+.. automodapi:: stellarphot.settings
 .. automodapi:: stellarphot.transit_fitting
 .. automodapi:: stellarphot.transit_fitting.gui
 .. automodapi:: stellarphot.transit_fitting.io
diff --git a/stellarphot/settings/autowidgets.py b/stellarphot/settings/autowidgets.py
index afe016ab..533e6fde 100644
--- a/stellarphot/settings/autowidgets.py
+++ b/stellarphot/settings/autowidgets.py
@@ -3,8 +3,15 @@
 import ipywidgets as w
 from ipyautoui.autowidgets import create_widget_caller
 
+__all__ = [
+    'CustomBoundedIntTex'
+]
+
 
 class CustomBoundedIntTex(w.BoundedIntText):
+    """
+    A BoundedIntText widget adapted for use in ipyautoui.
+    """
     def __init__(self, schema):
         self.schema = schema
         self.caller = create_widget_caller(schema)
diff --git a/stellarphot/settings/views.py b/stellarphot/settings/views.py
index 75a698c4..cdfda705 100644
--- a/stellarphot/settings/views.py
+++ b/stellarphot/settings/views.py
@@ -4,4 +4,7 @@
 
 
 def ui_generator(model):
+    """
+    Silly function to generate an AutoUi object from a model.
+    """
     return AutoUi(model)