diff --git a/.copier-answers.yml b/.copier-answers.yml
index 09abe54..5689fe2 100644
--- a/.copier-answers.yml
+++ b/.copier-answers.yml
@@ -1,10 +1,12 @@
 # Changes here will be overwritten by Copier; NEVER EDIT MANUALLY
-_commit: 0c002dc
+_commit: d9ab46a
 _src_path: gh:scipp/copier_template
 description: Reflectometry data reduction for the European Spallation Source
-github_linux_image: ubuntu-20.04
-max_python: '3.11'
-min_python: '3.10'
+max_python: '3.12'
+min_python: '3.8'
+namespace_package: ''
+nightly_deps: plopp,sciline,scippneutron,scippnexus,scipp
 orgname: scipp
 projectname: essreflectometry
+related_projects: Scipp,ScippNexus,ScippNeutron,Sciline,Plopp
 year: 2023
diff --git a/.github/dependabot.yml b/.github/dependabot.yml
index 4a4bf11..c8076bb 100644
--- a/.github/dependabot.yml
+++ b/.github/dependabot.yml
@@ -1,13 +1,9 @@
 version: 2
 updates:
-  - package-ecosystem: "github-actions"
-    directory: "/"
-    schedule:
-      interval: "weekly"
-    ignore:
-      # Optional: Official actions have moving tags like v1;
-      # if you use those, you don't need updates.
-      - dependency-name: "actions/*"
+  # Note: We are not listing package-ecosystem: "github-actions". This causes
+  # noise in all template instances. Instead dependabot.yml in scipp/copier_template
+  # triggers updates of github-actions in the *template*. We then use `copier update`
+  # in template instances.
   - package-ecosystem: "pip"
     directory: "/requirements"
     schedule:
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 42ddaa0..0d294d1 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -14,11 +14,19 @@ jobs:
   formatting:
     name: Formatting and static analysis
     runs-on: 'ubuntu-20.04'
+    outputs:
+      min_python: ${{ steps.vars.outputs.min_python }}
+      min_tox_env: ${{ steps.vars.outputs.min_tox_env }}
     steps:
-      - uses: actions/checkout@v3
-      - uses: actions/setup-python@v3
+      - uses: actions/checkout@v4
+      - name: Get Python version for other CI jobs
+        id: vars
+        run: |
+          echo "min_python=$(cat .github/workflows/python-version-ci)" >> $GITHUB_OUTPUT
+          echo "min_tox_env=py$(cat .github/workflows/python-version-ci | sed 's/\.//g')" >> $GITHUB_OUTPUT
+      - uses: actions/setup-python@v4
         with:
-          python-version: '3.8'
+          python-version-file: '.github/workflows/python-version-ci'
       - run: python -m pip install --upgrade pip
       - run: python -m pip install -r requirements/ci.txt
       - run: tox -e static
@@ -33,9 +41,8 @@ jobs:
       matrix:
         os: ['ubuntu-20.04']
         python:
-          - version: '3.8'
-            tox-env: 'py38'
-
+          - version: '${{needs.formatting.outputs.min_python}}'
+            tox-env: '${{needs.formatting.outputs.min_tox_env}}'
     uses: ./.github/workflows/test.yml
     with:
       os-variant: ${{ matrix.os }}
diff --git a/.github/workflows/docs.yml b/.github/workflows/docs.yml
index 9c66ac7..9dd22f1 100644
--- a/.github/workflows/docs.yml
+++ b/.github/workflows/docs.yml
@@ -1,7 +1,6 @@
 # SPDX-License-Identifier: BSD-3-Clause
 # Copyright (c) 2023 Scipp contributors (https://github.com/scipp)
 
-
 name: Docs
 
 on:
@@ -42,21 +41,17 @@ jobs:
     name: Build documentation
     runs-on: 'ubuntu-20.04'
     steps:
-
       - run: sudo apt install --yes graphviz pandoc
       - uses: actions/checkout@v3
         with:
           ref: ${{ inputs.branch == '' && github.ref_name || inputs.branch }}
           fetch-depth: 0  # history required so cmake can determine version
-      - uses: actions/setup-python@v3
+      - uses: actions/setup-python@v4
         with:
-
-          python-version: '3.8'
+          python-version-file: '.github/workflows/python-version-ci'
       - run: python -m pip install --upgrade pip
       - run: python -m pip install -r requirements/ci.txt
-      - run: |
-          tox --skip-pkg-install -e docs -- essreflectometry==${VERSION}
-
+      - run: tox -e releasedocs -- ${VERSION}
         if: ${{ inputs.version != '' }}
       - run: tox -e docs
         if: ${{ inputs.version == '' }}
@@ -72,4 +67,3 @@ jobs:
           folder: html
           single-commit: true
           ssh-key: ${{ secrets.GH_PAGES_DEPLOY_KEY }}
-
diff --git a/.github/workflows/nightly_at_main.yml b/.github/workflows/nightly_at_main.yml
new file mode 100644
index 0000000..67d31d8
--- /dev/null
+++ b/.github/workflows/nightly_at_main.yml
@@ -0,0 +1,36 @@
+# SPDX-License-Identifier: BSD-3-Clause
+# Copyright (c) 2023 Scipp contributors (https://github.com/scipp)
+
+name: Nightly test at main branch
+
+on:
+  workflow_dispatch:
+  schedule:
+    - cron: '30 23 * * *'
+
+jobs:
+  setup:
+    name: Setup variables
+    runs-on: 'ubuntu-20.04'
+    outputs:
+      min_python: ${{ steps.vars.outputs.min_python }}
+    steps:
+      - uses: actions/checkout@v4
+      - name: Get Python version for other CI jobs
+        id: vars
+        run: echo "min_python=$(cat .github/workflows/python-version-ci)" >> $GITHUB_OUTPUT
+
+  tests:
+    name: Tests
+    needs: setup
+    strategy:
+      matrix:
+        os: ['ubuntu-20.04']
+        python:
+          - version: '${{needs.setup.outputs.min_python}}'
+            tox-env: 'nightly'
+    uses: ./.github/workflows/test.yml
+    with:
+      os-variant: ${{ matrix.os }}
+      python-version: ${{ matrix.python.version }}
+      tox-env: ${{ matrix.python.tox-env }}
diff --git a/.github/workflows/nightly_at_release.yml b/.github/workflows/nightly_at_release.yml
new file mode 100644
index 0000000..b424c66
--- /dev/null
+++ b/.github/workflows/nightly_at_release.yml
@@ -0,0 +1,43 @@
+# SPDX-License-Identifier: BSD-3-Clause
+# Copyright (c) 2023 Scipp contributors (https://github.com/scipp)
+
+name: Nightly tests at latest release
+
+on:
+  workflow_dispatch:
+  schedule:
+    - cron: '0 23 * * *'
+
+jobs:
+  setup:
+    name: Setup variables
+    runs-on: 'ubuntu-20.04'
+    outputs:
+      min_python: ${{ steps.vars.outputs.min_python }}
+      release_tag: ${{ steps.release.outputs.release_tag }}
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          fetch-depth: 0  # history required so we can determine latest release tag
+      - name: Get last release tag from git
+        id: release
+        run: echo "release_tag=$(git describe --tags --abbrev=0 --match '[0-9]*.[0-9]*.[0-9]*')" >> $GITHUB_OUTPUT
+      - name: Get Python version for other CI jobs
+        id: vars
+        run: echo "min_python=$(cat .github/workflows/python-version-ci)" >> $GITHUB_OUTPUT
+
+  tests:
+    name: Tests
+    needs: setup
+    strategy:
+      matrix:
+        os: ['ubuntu-20.04']
+        python:
+          - version: '${{needs.setup.outputs.min_python}}'
+            tox-env: 'nightly'
+    uses: ./.github/workflows/test.yml
+    with:
+      os-variant: ${{ matrix.os }}
+      python-version: ${{ matrix.python.version }}
+      tox-env: ${{ matrix.python.tox-env }}
+      checkout_ref: ${{ needs.setup.outputs.release_tag }}
diff --git a/.github/workflows/python-version-ci b/.github/workflows/python-version-ci
new file mode 100644
index 0000000..cc1923a
--- /dev/null
+++ b/.github/workflows/python-version-ci
@@ -0,0 +1 @@
+3.8
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 3280899..223dd5a 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -21,21 +21,20 @@ jobs:
       - uses: actions/checkout@v3
         with:
           submodules: true
-          fetch-depth: 0  # history required so cmake can determine version
+          fetch-depth: 0  # history required so setuptools_scm can determine version
 
       - uses: mamba-org/setup-micromamba@v1
         with:
           environment-name: build-env
           create-args: >-
-            python=3.8
             conda-build
             boa
-      - run: conda mambabuild --channel conda-forge --channel scipp --python=3.8 --no-anaconda-upload --override-channels --output-folder conda/package conda
+      - run: conda mambabuild --channel conda-forge --channel scipp --no-anaconda-upload --override-channels --output-folder conda/package conda
 
       - uses: actions/upload-artifact@v3
         with:
           name: conda-package-noarch
-          path: conda/package/*/essreflectometry*.tar.bz2
+          path: conda/package/noarch/*.tar.bz2
 
   build_wheels:
     name: Wheels
@@ -46,9 +45,9 @@ jobs:
         with:
           fetch-depth: 0  # history required so setuptools_scm can determine version
 
-      - uses: actions/setup-python@v3
+      - uses: actions/setup-python@v4
         with:
-          python-version: '3.8'
+          python-version-file: '.github/workflows/python-version-ci'
 
       - run: python -m pip install --upgrade pip
       - run: python -m pip install -r requirements/wheels.txt
@@ -85,11 +84,11 @@ jobs:
       - uses: mamba-org/setup-micromamba@v1
         with:
           environment-name: upload-env
+          # frozen python due to breaking removal of 'imp' in 3.12
           create-args: >-
-            python=3.8
             anaconda-client
-
-      - run: anaconda --token ${{ secrets.ANACONDATOKEN }} upload --user scipp --label main $(ls conda-package-*/*/*.tar.bz2)
+            python=3.11
+      - run: anaconda --token ${{ secrets.ANACONDATOKEN }} upload --user scipp --label main $(ls conda-package-noarch/*.tar.bz2)
 
   docs:
     needs: [upload_conda, upload_pypi]
@@ -98,14 +97,12 @@ jobs:
       publish: ${{ github.event_name == 'release' && github.event.action == 'published' }}
     secrets: inherit
 
-
   assets:
     name: Upload docs
     needs: docs
     runs-on: 'ubuntu-20.04'
     permissions:
       contents: write  # This is needed so that the action can upload the asset
-
     steps:
     - uses: actions/download-artifact@v3
     - name: Zip documentation
@@ -117,4 +114,3 @@ jobs:
       with:
         file: ./documentation-${{ github.ref_name }}.zip
         overwrite: false
-
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index ee40602..8ce71be 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -10,7 +10,6 @@ on:
         default: 'ubuntu-20.04'
         type: string
       python-version:
-        default: '3.8'
         type: string
       tox-env:
         default: 'test'
@@ -21,13 +20,15 @@ on:
       coverage-report:
         default: false
         type: boolean
+      checkout_ref:
+        default: ''
+        type: string
   workflow_call:
     inputs:
       os-variant:
         default: 'ubuntu-20.04'
         type: string
       python-version:
-        default: '3.8'
         type: string
       tox-env:
         default: 'test'
@@ -38,6 +39,9 @@ on:
       coverage-report:
         default: false
         type: boolean
+      checkout_ref:
+        default: ''
+        type: string
 
 jobs:
   test:
@@ -45,6 +49,8 @@ jobs:
 
     steps:
       - uses: actions/checkout@v3
+        with:
+          ref: ${{ inputs.checkout_ref }}
       - uses: actions/setup-python@v3
         with:
           python-version: ${{ inputs.python-version }}
@@ -56,4 +62,3 @@ jobs:
         with:
           name: CoverageReport
           path: coverage_html/
-
diff --git a/docs/about/index.md b/docs/about/index.md
index 059a149..161c35d 100644
--- a/docs/about/index.md
+++ b/docs/about/index.md
@@ -8,6 +8,14 @@ Essreflectometry is an open source project by the [European Spallation Source ER
 
 Essreflectometry is available as open source under the [BSD-3 license](https://opensource.org/licenses/BSD-3-Clause).
 
+## Citing Essreflectometry
+
+Please cite the following:
+
+[![DOI](https://zenodo.org/badge/FIXME.svg)](https://zenodo.org/doi/10.5281/zenodo.FIXME)
+
+To cite a specific version of Essreflectometry, select the desired version on Zenodo to get the corresponding DOI.
+
 ## Older versions of the documentation
 
 Older versions of the documentation pages can be found under the assets of each [release](https://github.com/scipp/essreflectometry/releases).
diff --git a/docs/conf.py b/docs/conf.py
index 46b586a..6bfc0cc 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -122,6 +122,7 @@
     "primary_sidebar_end": ["edit-this-page", "sourcelink"],
     "secondary_sidebar_items": [],
     "show_nav_level": 1,
+    # Adjust this to ensure external links are moved to "Move" menu
     "header_links_before_dropdown": 4,
     "pygment_light_style": "github-light-high-contrast",
     "pygment_dark_style": "github-dark-high-contrast",
@@ -129,7 +130,13 @@
         "image_light": "_static/logo.svg",
         "image_dark": "_static/logo-dark.svg",
     },
-    "external_links": [],
+    "external_links": [
+        {"name": "Plopp", "url": "https://scipp.github.io/plopp"},
+        {"name": "Sciline", "url": "https://scipp.github.io/sciline"},
+        {"name": "Scipp", "url": "https://scipp.github.io"},
+        {"name": "ScippNeutron", "url": "https://scipp.github.io/scippneutron"},
+        {"name": "ScippNexus", "url": "https://scipp.github.io/scippnexus"},
+        ],
     "icon_links": [
         {
             "name": "GitHub",
diff --git a/docs/developer/getting-started.md b/docs/developer/getting-started.md
index 70b797c..88e1036 100644
--- a/docs/developer/getting-started.md
+++ b/docs/developer/getting-started.md
@@ -40,7 +40,7 @@ Alternatively, if you want a different workflow, take a look at ``tox.ini`` or `
 Run the tests using
 
 ```sh
-tox -e py310
+tox -e py38
 ```
 
 (or just `tox` if you want to run all environments).
diff --git a/pyproject.toml b/pyproject.toml
index 27c49bf..73eefb7 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,7 +1,7 @@
 [build-system]
 requires = [
-  "setuptools>=67",
-  "setuptools_scm[toml]>=7.0",
+  "setuptools>=68",
+  "setuptools_scm[toml]>=8.0",
 ]
 build-backend = "setuptools.build_meta"
 
@@ -22,10 +22,15 @@ classifiers = [
     "Programming Language :: Python :: 3.9",
     "Programming Language :: Python :: 3.10",
     "Programming Language :: Python :: 3.11",
+    "Programming Language :: Python :: 3.12",
     "Topic :: Scientific/Engineering",
     "Typing :: Typed",
 ]
 requires-python = ">=3.8"
+
+# IMPORTANT:
+# Run 'tox -e deps' after making changes here. This will update requirement files.
+# Make sure to list one dependency per line.
 dependencies = [
   "dask",
   "graphviz",
@@ -36,6 +41,7 @@ dependencies = [
   "scipp>=23.8.0",
   "scippneutron>=23.9.0",
 ]
+
 dynamic = ["version"]
 
 [project.urls]
diff --git a/requirements/base.in b/requirements/base.in
index e69de29..03077f5 100644
--- a/requirements/base.in
+++ b/requirements/base.in
@@ -0,0 +1,9 @@
+# Generated by 'tox -e deps', DO NOT EDIT MANUALLY!'
+dask
+graphviz
+plopp
+pythreejs
+orsopy
+sciline>=23.9.1
+scipp>=23.8.0
+scippneutron>=23.9.0
\ No newline at end of file
diff --git a/requirements/base.txt b/requirements/base.txt
index c24fd27..4f77ca1 100644
--- a/requirements/base.txt
+++ b/requirements/base.txt
@@ -1,8 +1,176 @@
-# SHA1:da39a3ee5e6b4b0d3255bfef95601890afd80709
+# SHA1:1c8f560626b4a08121d239f240439127b1844782
 #
 # This file is autogenerated by pip-compile-multi
 # To update, run:
 #
 #    pip-compile-multi
 #
-
+asttokens==2.4.0
+    # via stack-data
+backcall==0.2.0
+    # via ipython
+certifi==2023.7.22
+    # via requests
+charset-normalizer==3.3.1
+    # via requests
+click==8.1.7
+    # via dask
+cloudpickle==3.0.0
+    # via dask
+comm==0.1.4
+    # via ipywidgets
+confuse==2.0.1
+    # via scipp
+contourpy==1.1.1
+    # via matplotlib
+cycler==0.12.1
+    # via matplotlib
+dask==2023.5.0
+    # via -r base.in
+decorator==5.1.1
+    # via ipython
+executing==2.0.0
+    # via stack-data
+fonttools==4.43.1
+    # via matplotlib
+fsspec==2023.10.0
+    # via dask
+graphlib-backport==1.0.3
+    # via
+    #   sciline
+    #   scipp
+graphviz==0.20.1
+    # via -r base.in
+h5py==3.10.0
+    # via
+    #   scippneutron
+    #   scippnexus
+idna==3.4
+    # via requests
+importlib-metadata==6.8.0
+    # via dask
+importlib-resources==6.1.0
+    # via matplotlib
+ipydatawidgets==4.3.5
+    # via pythreejs
+ipython==8.12.3
+    # via ipywidgets
+ipywidgets==8.1.1
+    # via
+    #   ipydatawidgets
+    #   pythreejs
+jedi==0.19.1
+    # via ipython
+jupyterlab-widgets==3.0.9
+    # via ipywidgets
+kiwisolver==1.4.5
+    # via matplotlib
+locket==1.0.0
+    # via partd
+matplotlib==3.7.3
+    # via plopp
+matplotlib-inline==0.1.6
+    # via ipython
+numpy==1.24.4
+    # via
+    #   contourpy
+    #   h5py
+    #   ipydatawidgets
+    #   matplotlib
+    #   pythreejs
+    #   scipp
+    #   scippneutron
+    #   scipy
+orsopy==1.1.0
+    # via -r base.in
+packaging==23.2
+    # via
+    #   dask
+    #   matplotlib
+    #   pooch
+parso==0.8.3
+    # via jedi
+partd==1.4.1
+    # via dask
+pexpect==4.8.0
+    # via ipython
+pickleshare==0.7.5
+    # via ipython
+pillow==10.1.0
+    # via matplotlib
+platformdirs==3.11.0
+    # via pooch
+plopp==23.10.1
+    # via -r base.in
+pooch==1.8.0
+    # via scippneutron
+prompt-toolkit==3.0.39
+    # via ipython
+ptyprocess==0.7.0
+    # via pexpect
+pure-eval==0.2.2
+    # via stack-data
+pygments==2.16.1
+    # via ipython
+pyparsing==3.1.1
+    # via matplotlib
+python-dateutil==2.8.2
+    # via
+    #   matplotlib
+    #   scippnexus
+pythreejs==2.4.2
+    # via -r base.in
+pyyaml==6.0.1
+    # via
+    #   confuse
+    #   dask
+    #   orsopy
+requests==2.31.0
+    # via pooch
+sciline==23.9.1
+    # via -r base.in
+scipp==23.8.0
+    # via
+    #   -r base.in
+    #   scippneutron
+    #   scippnexus
+scippneutron==23.9.0
+    # via -r base.in
+scippnexus==23.8.0
+    # via scippneutron
+scipy==1.10.1
+    # via
+    #   scippneutron
+    #   scippnexus
+six==1.16.0
+    # via
+    #   asttokens
+    #   python-dateutil
+stack-data==0.6.3
+    # via ipython
+toolz==0.12.0
+    # via
+    #   dask
+    #   partd
+traitlets==5.12.0
+    # via
+    #   comm
+    #   ipython
+    #   ipywidgets
+    #   matplotlib-inline
+    #   pythreejs
+    #   traittypes
+traittypes==0.2.1
+    # via ipydatawidgets
+typing-extensions==4.8.0
+    # via ipython
+urllib3==2.0.7
+    # via requests
+wcwidth==0.2.8
+    # via prompt-toolkit
+widgetsnbextension==4.0.9
+    # via ipywidgets
+zipp==3.17.0
+    # via
+    #   importlib-metadata
+    #   importlib-resources
diff --git a/requirements/ci.txt b/requirements/ci.txt
index 5d62dbc..0efd86c 100644
--- a/requirements/ci.txt
+++ b/requirements/ci.txt
@@ -5,13 +5,13 @@
 #
 #    pip-compile-multi
 #
-cachetools==5.3.1
+cachetools==5.3.2
     # via tox
 certifi==2023.7.22
     # via requests
 chardet==5.2.0
     # via tox
-charset-normalizer==3.3.0
+charset-normalizer==3.3.1
     # via requests
 colorama==0.4.6
     # via tox
@@ -21,9 +21,9 @@ filelock==3.12.4
     # via
     #   tox
     #   virtualenv
-gitdb==4.0.10
+gitdb==4.0.11
     # via gitpython
-gitpython==3.1.37
+gitpython==3.1.40
     # via -r ci.in
 idna==3.4
     # via requests
@@ -50,7 +50,7 @@ tomli==2.0.1
     #   tox
 tox==4.11.3
     # via -r ci.in
-urllib3==2.0.6
+urllib3==2.0.7
     # via requests
-virtualenv==20.24.5
+virtualenv==20.24.6
     # via tox
diff --git a/requirements/dev.txt b/requirements/dev.txt
index 43c573b..5acbba4 100644
--- a/requirements/dev.txt
+++ b/requirements/dev.txt
@@ -24,10 +24,6 @@ async-lru==2.0.4
     # via jupyterlab
 cffi==1.16.0
     # via argon2-cffi-bindings
-click==8.1.7
-    # via
-    #   pip-compile-multi
-    #   pip-tools
 fqdn==1.5.1
     # via jsonschema
 isoduration==20.11.0
@@ -41,11 +37,11 @@ jsonschema[format-nongpl]==4.19.1
     #   jupyter-events
     #   jupyterlab-server
     #   nbformat
-jupyter-events==0.7.0
+jupyter-events==0.8.0
     # via jupyter-server
 jupyter-lsp==2.2.0
     # via jupyterlab
-jupyter-server==2.7.3
+jupyter-server==2.9.0
     # via
     #   jupyter-lsp
     #   jupyterlab
@@ -53,7 +49,7 @@ jupyter-server==2.7.3
     #   notebook-shim
 jupyter-server-terminals==0.4.4
     # via jupyter-server
-jupyterlab==4.0.6
+jupyterlab==4.0.7
     # via -r dev.in
 jupyterlab-server==2.25.0
     # via jupyterlab
diff --git a/requirements/docs.txt b/requirements/docs.txt
index 44b2968..8bb53c6 100644
--- a/requirements/docs.txt
+++ b/requirements/docs.txt
@@ -12,36 +12,24 @@ alabaster==0.7.13
     # via sphinx
 annotated-types==0.6.0
     # via pydantic
-asttokens==2.4.0
-    # via stack-data
 attrs==23.1.0
     # via
     #   jsonschema
     #   referencing
 autodoc-pydantic==2.0.1
     # via -r docs.in
-babel==2.13.0
+babel==2.13.1
     # via
     #   pydata-sphinx-theme
     #   sphinx
-backcall==0.2.0
-    # via ipython
 beautifulsoup4==4.12.2
     # via
     #   nbconvert
     #   pydata-sphinx-theme
 bleach==6.1.0
     # via nbconvert
-certifi==2023.7.22
-    # via requests
-charset-normalizer==3.3.0
-    # via requests
-comm==0.1.4
-    # via ipykernel
 debugpy==1.8.0
     # via ipykernel
-decorator==5.1.1
-    # via ipython
 defusedxml==0.7.1
     # via nbconvert
 docutils==0.20.1
@@ -50,32 +38,12 @@ docutils==0.20.1
     #   nbsphinx
     #   pydata-sphinx-theme
     #   sphinx
-executing==2.0.0
-    # via stack-data
 fastjsonschema==2.18.1
     # via nbformat
-idna==3.4
-    # via requests
 imagesize==1.4.1
     # via sphinx
-importlib-metadata==6.8.0
-    # via
-    #   autodoc-pydantic
-    #   jupyter-client
-    #   nbconvert
-    #   sphinx
-importlib-resources==6.1.0
-    # via
-    #   jsonschema
-    #   jsonschema-specifications
-ipykernel==6.25.2
+ipykernel==6.26.0
     # via -r docs.in
-ipython==8.12.3
-    # via
-    #   -r docs.in
-    #   ipykernel
-jedi==0.19.1
-    # via ipython
 jinja2==3.1.2
     # via
     #   myst-parser
@@ -86,11 +54,11 @@ jsonschema==4.19.1
     # via nbformat
 jsonschema-specifications==2023.7.1
     # via jsonschema
-jupyter-client==8.3.1
+jupyter-client==8.5.0
     # via
     #   ipykernel
     #   nbclient
-jupyter-core==5.3.2
+jupyter-core==5.4.0
     # via
     #   ipykernel
     #   jupyter-client
@@ -107,10 +75,6 @@ markupsafe==2.1.3
     # via
     #   jinja2
     #   nbconvert
-matplotlib-inline==0.1.6
-    # via
-    #   ipykernel
-    #   ipython
 mdit-py-plugins==0.4.0
     # via myst-parser
 mdurl==0.1.2
@@ -132,32 +96,12 @@ nbsphinx==0.9.3
     # via -r docs.in
 nest-asyncio==1.5.8
     # via ipykernel
-packaging==23.2
-    # via
-    #   ipykernel
-    #   nbconvert
-    #   pydata-sphinx-theme
-    #   sphinx
 pandocfilters==1.5.0
     # via nbconvert
-parso==0.8.3
-    # via jedi
-pexpect==4.8.0
-    # via ipython
-pickleshare==0.7.5
-    # via ipython
 pkgutil-resolve-name==1.3.10
     # via jsonschema
-platformdirs==3.11.0
-    # via jupyter-core
-prompt-toolkit==3.0.39
-    # via ipython
-psutil==5.9.5
+psutil==5.9.6
     # via ipykernel
-ptyprocess==0.7.0
-    # via pexpect
-pure-eval==0.2.2
-    # via stack-data
 pydantic==2.4.2
     # via
     #   autodoc-pydantic
@@ -166,23 +110,12 @@ pydantic-core==2.10.1
     # via pydantic
 pydantic-settings==2.0.3
     # via autodoc-pydantic
-pydata-sphinx-theme==0.14.1
+pydata-sphinx-theme==0.14.2
     # via -r docs.in
-pygments==2.16.1
-    # via
-    #   accessible-pygments
-    #   ipython
-    #   nbconvert
-    #   pydata-sphinx-theme
-    #   sphinx
-python-dateutil==2.8.2
-    # via jupyter-client
 python-dotenv==1.0.0
     # via pydantic-settings
 pytz==2023.3.post1
     # via babel
-pyyaml==6.0.1
-    # via myst-parser
 pyzmq==25.1.1
     # via
     #   ipykernel
@@ -191,17 +124,10 @@ referencing==0.30.2
     # via
     #   jsonschema
     #   jsonschema-specifications
-requests==2.31.0
-    # via sphinx
-rpds-py==0.10.4
+rpds-py==0.10.6
     # via
     #   jsonschema
     #   referencing
-six==1.16.0
-    # via
-    #   asttokens
-    #   bleach
-    #   python-dateutil
 snowballstemmer==2.2.0
     # via sphinx
 soupsieve==2.5
@@ -234,42 +160,13 @@ sphinxcontrib-qthelp==1.0.3
     # via sphinx
 sphinxcontrib-serializinghtml==1.1.5
     # via sphinx
-stack-data==0.6.3
-    # via ipython
 tinycss2==1.2.1
     # via nbconvert
 tornado==6.3.3
     # via
     #   ipykernel
     #   jupyter-client
-traitlets==5.11.2
-    # via
-    #   comm
-    #   ipykernel
-    #   ipython
-    #   jupyter-client
-    #   jupyter-core
-    #   matplotlib-inline
-    #   nbclient
-    #   nbconvert
-    #   nbformat
-    #   nbsphinx
-typing-extensions==4.8.0
-    # via
-    #   annotated-types
-    #   ipython
-    #   pydantic
-    #   pydantic-core
-    #   pydata-sphinx-theme
-urllib3==2.0.6
-    # via requests
-wcwidth==0.2.8
-    # via prompt-toolkit
 webencodings==0.5.1
     # via
     #   bleach
     #   tinycss2
-zipp==3.17.0
-    # via
-    #   importlib-metadata
-    #   importlib-resources
diff --git a/requirements/make_base.py b/requirements/make_base.py
new file mode 100644
index 0000000..27a23c2
--- /dev/null
+++ b/requirements/make_base.py
@@ -0,0 +1,48 @@
+import sys
+from argparse import ArgumentParser
+
+import tomli
+
+parser = ArgumentParser()
+parser.add_argument(
+    "--nightly",
+    default="",
+    help="List of dependencies to install from main branch for nightly tests, "
+    "separated by commas.",
+)
+args = parser.parse_args()
+
+header = "# Generated by 'tox -e deps', DO NOT EDIT MANUALLY!'\n"
+
+with open("../pyproject.toml", "rb") as toml_file:
+    pyproject = tomli.load(toml_file)
+    dependencies = pyproject["project"].get("dependencies")
+    if not dependencies:
+        raise RuntimeError("No dependencies found in pyproject.toml")
+    dependencies = [dep.strip().strip('"') for dep in dependencies]
+
+with open("base.in", "w") as f:
+    f.write(header)
+    f.write("\n".join(dependencies))
+
+
+def as_nightly(repo: str) -> str:
+    if "/" in repo:
+        org, repo = repo.split("/")
+    else:
+        org = "scipp"
+    if repo == "scipp":
+        version = f"cp{sys.version_info.major}{sys.version_info.minor}"
+        base = "https://github.com/scipp/scipp/releases/download/nightly/scipp-nightly"
+        suffix = "manylinux_2_17_x86_64.manylinux2014_x86_64.whl"
+        return "-".join([base, version, version, suffix])
+    return f"{repo} @ git+https://github.com/{org}/{repo}@main"
+
+
+nightly = args.nightly.split(",") if args.nightly else []
+dependencies = [dep for dep in dependencies if not dep.startswith(tuple(nightly))]
+dependencies += [as_nightly(arg) for arg in nightly]
+
+with open("nightly.in", "w") as f:
+    f.write(header)
+    f.write("\n".join(dependencies))
diff --git a/requirements/mypy.txt b/requirements/mypy.txt
index e01bb3a..4f4b58a 100644
--- a/requirements/mypy.txt
+++ b/requirements/mypy.txt
@@ -6,9 +6,7 @@
 #    pip-compile-multi
 #
 -r test.txt
-mypy==1.5.1
+mypy==1.6.1
     # via -r mypy.in
 mypy-extensions==1.0.0
     # via mypy
-typing-extensions==4.8.0
-    # via mypy
diff --git a/requirements/nightly.in b/requirements/nightly.in
new file mode 100644
index 0000000..d68d35b
--- /dev/null
+++ b/requirements/nightly.in
@@ -0,0 +1,10 @@
+# Generated by 'tox -e deps', DO NOT EDIT MANUALLY!'
+dask
+graphviz
+pythreejs
+orsopy
+plopp @ git+https://github.com/scipp/plopp@main
+sciline @ git+https://github.com/scipp/sciline@main
+scippneutron @ git+https://github.com/scipp/scippneutron@main
+scippnexus @ git+https://github.com/scipp/scippnexus@main
+https://github.com/scipp/scipp/releases/download/nightly/scipp-nightly-cp38-cp38-manylinux_2_17_x86_64.manylinux2014_x86_64.whl
\ No newline at end of file
diff --git a/requirements/nightly.txt b/requirements/nightly.txt
new file mode 100644
index 0000000..89faab1
--- /dev/null
+++ b/requirements/nightly.txt
@@ -0,0 +1,175 @@
+# SHA1:f2143c680cfed321ce4ddf45566561733e74c9d8
+#
+# This file is autogenerated by pip-compile-multi
+# To update, run:
+#
+#    pip-compile-multi
+#
+asttokens==2.4.0
+    # via stack-data
+backcall==0.2.0
+    # via ipython
+certifi==2023.7.22
+    # via requests
+charset-normalizer==3.3.1
+    # via requests
+click==8.1.7
+    # via dask
+cloudpickle==3.0.0
+    # via dask
+comm==0.1.4
+    # via ipywidgets
+contourpy==1.1.1
+    # via matplotlib
+cycler==0.12.1
+    # via matplotlib
+dask==2023.5.0
+    # via -r nightly.in
+decorator==5.1.1
+    # via ipython
+executing==2.0.0
+    # via stack-data
+fonttools==4.43.1
+    # via matplotlib
+fsspec==2023.10.0
+    # via dask
+graphlib-backport==1.0.3
+    # via
+    #   sciline
+    #   scipp
+graphviz==0.20.1
+    # via -r nightly.in
+h5py==3.10.0
+    # via
+    #   scippneutron
+    #   scippnexus
+idna==3.4
+    # via requests
+importlib-metadata==6.8.0
+    # via dask
+importlib-resources==6.1.0
+    # via matplotlib
+ipydatawidgets==4.3.5
+    # via pythreejs
+ipython==8.12.3
+    # via ipywidgets
+ipywidgets==8.1.1
+    # via
+    #   ipydatawidgets
+    #   pythreejs
+jedi==0.19.1
+    # via ipython
+jupyterlab-widgets==3.0.9
+    # via ipywidgets
+kiwisolver==1.4.5
+    # via matplotlib
+locket==1.0.0
+    # via partd
+matplotlib==3.7.3
+    # via plopp
+matplotlib-inline==0.1.6
+    # via ipython
+numpy==1.24.4
+    # via
+    #   contourpy
+    #   h5py
+    #   ipydatawidgets
+    #   matplotlib
+    #   pythreejs
+    #   scipp
+    #   scippneutron
+    #   scipy
+orsopy==1.1.0
+    # via -r nightly.in
+packaging==23.2
+    # via
+    #   dask
+    #   matplotlib
+    #   pooch
+parso==0.8.3
+    # via jedi
+partd==1.4.1
+    # via dask
+pexpect==4.8.0
+    # via ipython
+pickleshare==0.7.5
+    # via ipython
+pillow==10.1.0
+    # via matplotlib
+platformdirs==3.11.0
+    # via pooch
+plopp @ git+https://github.com/scipp/plopp@main
+    # via -r nightly.in
+pooch==1.8.0
+    # via scippneutron
+prompt-toolkit==3.0.39
+    # via ipython
+ptyprocess==0.7.0
+    # via pexpect
+pure-eval==0.2.2
+    # via stack-data
+pygments==2.16.1
+    # via ipython
+pyparsing==3.1.1
+    # via matplotlib
+python-dateutil==2.8.2
+    # via
+    #   matplotlib
+    #   scippnexus
+pythreejs==2.4.2
+    # via -r nightly.in
+pyyaml==6.0.1
+    # via
+    #   dask
+    #   orsopy
+requests==2.31.0
+    # via pooch
+sciline @ git+https://github.com/scipp/sciline@main
+    # via -r nightly.in
+scipp @ https://github.com/scipp/scipp/releases/download/nightly/scipp-nightly-cp38-cp38-manylinux_2_17_x86_64.manylinux2014_x86_64.whl
+    # via
+    #   -r nightly.in
+    #   scippneutron
+    #   scippnexus
+scippneutron @ git+https://github.com/scipp/scippneutron@main
+    # via -r nightly.in
+scippnexus @ git+https://github.com/scipp/scippnexus@main
+    # via
+    #   -r nightly.in
+    #   scippneutron
+scipy==1.10.1
+    # via
+    #   scippneutron
+    #   scippnexus
+six==1.16.0
+    # via
+    #   asttokens
+    #   python-dateutil
+stack-data==0.6.3
+    # via ipython
+toolz==0.12.0
+    # via
+    #   dask
+    #   partd
+traitlets==5.12.0
+    # via
+    #   comm
+    #   ipython
+    #   ipywidgets
+    #   matplotlib-inline
+    #   pythreejs
+    #   traittypes
+traittypes==0.2.1
+    # via ipydatawidgets
+typing-extensions==4.8.0
+    # via ipython
+urllib3==2.0.7
+    # via requests
+wcwidth==0.2.8
+    # via prompt-toolkit
+widgetsnbextension==4.0.9
+    # via ipywidgets
+zipp==3.17.0
+    # via
+    #   importlib-metadata
+    #   importlib-resources
diff --git a/requirements/static.txt b/requirements/static.txt
index cfb05f0..11418f2 100644
--- a/requirements/static.txt
+++ b/requirements/static.txt
@@ -17,11 +17,11 @@ nodeenv==1.8.0
     # via pre-commit
 platformdirs==3.11.0
     # via virtualenv
-pre-commit==3.4.0
+pre-commit==3.5.0
     # via -r static.in
 pyyaml==6.0.1
     # via pre-commit
-virtualenv==20.24.5
+virtualenv==20.24.6
     # via pre-commit
 
 # The following packages are considered to be unsafe in a requirements file:
diff --git a/requirements/test.txt b/requirements/test.txt
index fbbe0d0..0139655 100644
--- a/requirements/test.txt
+++ b/requirements/test.txt
@@ -10,11 +10,9 @@ exceptiongroup==1.1.3
     # via pytest
 iniconfig==2.0.0
     # via pytest
-packaging==23.2
-    # via pytest
 pluggy==1.3.0
     # via pytest
-pytest==7.4.2
+pytest==7.4.3
     # via -r test.in
 tomli==2.0.1
     # via pytest
diff --git a/setup.cfg b/setup.cfg
index de13363..1ba190c 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -1,15 +1,3 @@
-[options]
-package_dir =
-    = src
-packages = find:
-include_package_data = True
-
-[options.packages.find]
-where = src
-
-[options.package_data]
-essreflectometry = py.typed
-
 [flake8]
 # See https://black.readthedocs.io/en/stable/the_black_code_style/current_style.html#line-length
 max-line-length = 88
diff --git a/src/essreflectometry/__init__.py b/src/essreflectometry/__init__.py
index 12c1916..6d115cc 100644
--- a/src/essreflectometry/__init__.py
+++ b/src/essreflectometry/__init__.py
@@ -8,3 +8,5 @@
     __version__ = importlib.metadata.version(__package__ or __name__)
 except importlib.metadata.PackageNotFoundError:
     __version__ = "0.0.0"
+
+del importlib
diff --git a/tox.ini b/tox.ini
index 0573b76..2d5cdb1 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,5 +1,5 @@
 [tox]
-envlist = py310
+envlist = py38
 isolated_build = true
 
 [testenv]
@@ -8,20 +8,29 @@ setenv =
   JUPYTER_PLATFORM_DIRS = 1
 commands = pytest
 
+[testenv:nightly]
+deps =
+  -r requirements/nightly.txt
+  pytest
+commands = pytest
+
 [testenv:docs]
 description = invoke sphinx-build to build the HTML docs
-deps =
-  {posargs:}
-  -r requirements/docs.txt
+deps = -r requirements/docs.txt
 allowlist_externals=find
-setenv =
-  {[testenv]setenv}
-  # Search directory for confuse for custom config enabling plopp plotting
-  SCIPPDIR={toxinidir}{/}docs{/}buildconfig
 commands = python -m sphinx -j2 -v -b html -d {toxworkdir}/docs_doctrees docs html
            python -m sphinx -j2 -v -b doctest -d {toxworkdir}/docs_doctrees docs html
            find html -type f -name "*.ipynb" -not -path "html/_sources/*" -delete
 
+[testenv:releasedocs]
+description = invoke sphinx-build to build the HTML docs from a released version
+skip_install = true
+deps =
+  essreflectometry=={posargs}
+  {[testenv:docs]deps}
+allowlist_externals={[testenv:docs]allowlist_externals}
+commands = {[testenv:docs]commands}
+
 [testenv:linkcheck]
 description = Run Sphinx linkcheck
 deps = -r requirements/docs.txt
@@ -44,7 +53,10 @@ commands = python -m mypy .
 
 [testenv:deps]
 description = Update dependencies by running pip-compile-multi
-deps = pip-compile-multi
+deps =
+  pip-compile-multi
+  tomli
 skip_install = true
 changedir = requirements
-commands = pip-compile-multi -d .
+commands = python ./make_base.py --nightly plopp,sciline,scippneutron,scippnexus,scipp
+           pip-compile-multi -d .