diff --git a/.github/pytest.json b/.github/pytest.json
new file mode 100644
index 00000000..7f010d1e
--- /dev/null
+++ b/.github/pytest.json
@@ -0,0 +1,23 @@
+{
+    "problemMatcher": [
+        {
+            "owner": "pytest-warnings",
+            "severity": "warning",
+            "pattern": [
+                {
+                    "regexp": "^=+ warnings summary =+$"
+                },
+                {
+                    "regexp": "^(?<path>.+?):(?<line>\\d+)$",
+                    "file": 1,
+                    "line": 2
+                },
+                {
+                    "regexp": "^  (?<message>.+)$",
+                    "message": 1,
+                    "loop": true
+                }
+            ]
+        }
+    ]
+}
diff --git a/.github/sphinx.json b/.github/sphinx.json
new file mode 100644
index 00000000..2f12378d
--- /dev/null
+++ b/.github/sphinx.json
@@ -0,0 +1,38 @@
+{
+    "problemMatcher": [
+        {
+            "owner": "sphinx-docstring",
+            "pattern": [
+                {
+                    "regexp": "^(?<path>.+?):(?<message>.*? (?<severity>WARNING|ERROR): .+)$",
+                    "file": 1,
+                    "severity": 3,
+                    "message": 2
+                }
+            ]
+        },
+        {
+            "owner": "sphinx-doctest",
+            "pattern": [
+                {
+                    "regexp": "^File \\\"(?<path>.+?)\\\", line (?<line>\\d+|\\?), (?<msg>.*$)",
+                    "file": 1,
+                    "line": 2,
+                    "message": 3
+                }
+            ]
+        },
+        {
+            "owner": "sphinx-extension",
+            "pattern": [
+                {
+                    "regexp": "^(?<severity>WARNING|ERROR): (?<code>\\S+): (?<message>.+)(?<dummy_file_entry>)$",
+                    "severity": 1,
+                    "code": 2,
+                    "message": 3,
+                    "file": 4
+                }
+            ]
+        }
+    ]
+}
diff --git a/.github/workflows/pyleco_CI.yml b/.github/workflows/pyleco_CI.yml
new file mode 100644
index 00000000..b7a575ca
--- /dev/null
+++ b/.github/workflows/pyleco_CI.yml
@@ -0,0 +1,105 @@
+name: PyLECO CI
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+
+jobs:
+  docs_lint:
+    name: Docs and Linting
+    runs-on: "ubuntu-latest"
+    defaults:
+      run:
+        shell: bash -l {0}
+    steps:
+      - uses: actions/checkout@v3
+        with:
+          fetch-depth: 0
+      - name: Cache conda
+        uses: actions/cache@v3
+        env:
+          CACHE_NUMBER: 0  # Increase to reset the cache
+        with:
+          path: ~/conda_pkgs_dir
+          key: py3.10-ubuntu-latest-conda-${{ env.CACHE_NUMBER }}-${{ hashFiles('environment.yml') }}
+      - name: Install pyleco requirements
+        uses: conda-incubator/setup-miniconda@v2
+        with:
+          python-version: "3.10"
+          environment-file: environment.yml
+          activate-environment: pyleco
+          auto-update-conda: true
+          use-only-tar-bz2: true  # for caching to work properly
+      - name: Conda info & list
+        run: |
+          conda info
+          conda list
+      - name: Set up flake8 annotations
+        uses: rbialon/flake8-annotations@v1
+      - name: Lint with flake8
+        run: |
+          # Be sure to check for Python syntax errors or undefined names
+          flake8 . --count --extend-select=E9,F63,F7,F82 --show-source --statistics
+      - uses: ammaraskar/sphinx-problem-matcher@master
+      - name: Generate docs
+        if: always()  # run even if the previous step failed
+        working-directory: ./docs
+        run: |
+          echo "::add-matcher::.github/sphinx.json"
+          make html SPHINXOPTS="-W --keep-going"
+      - name: Run doctests
+        if: always()  # run even if the previous step failed
+        working-directory: ./docs
+        run: |
+          echo "::add-matcher::.github/sphinx.json"
+          make doctest SPHINXOPTS="-W --keep-going"
+  test:
+    name: Python ${{ matrix.python-version }}, ${{ matrix.os }}
+    runs-on: ${{ matrix.os }}
+    defaults:
+      run:
+        shell: bash -l {0}
+    strategy:
+      fail-fast: true
+      matrix:
+        os: ["ubuntu-latest", "macos-latest", "windows-latest"]
+        python-version: ["3.10", "3.11"]
+    steps:
+      - uses: actions/checkout@v3
+        with:
+          fetch-depth: 0
+      - name: Cache conda
+        uses: actions/cache@v3
+        env:
+          CACHE_NUMBER: 0  # Increase to reset the cache
+        with:
+          path: ~/conda_pkgs_dir
+          key: py${{ matrix.python-version }}-${{ matrix.os }}-conda-${{ env.CACHE_NUMBER }}-${{ hashFiles('environment.yml') }}
+      - name: Install pyleco requirements
+        uses: conda-incubator/setup-miniconda@v2
+        with:
+          python-version: ${{ matrix.python-version }}
+          environment-file: environment.yml
+          activate-environment: pyleco
+          auto-update-conda: true
+          use-only-tar-bz2: true  # for caching to work properly
+      - name: Install Pyleco
+        # If the pytest problem matcher stops working because of bad paths, do an editable install
+        run: pip install .[dev]
+      - name: Pyleco version
+        run: python -c "import pyleco;print(pyleco.__version__)"
+      - name: Conda info & list
+        run: |
+          conda info
+          conda list
+      - name: Run pytest with xvfb
+        if: runner.os == 'Linux'
+        run: |
+          echo "::add-matcher::.github/pytest.json"
+          xvfb-run -a pytest
+      - name: Run pytest
+        if: runner.os != 'Linux'
+        run: |
+          echo "::add-matcher::.github/pytest.json"
+          pytest
diff --git a/docs/Makefile b/docs/Makefile
new file mode 100644
index 00000000..97c82179
--- /dev/null
+++ b/docs/Makefile
@@ -0,0 +1,177 @@
+# Makefile for Sphinx documentation
+#
+
+# You can set these variables from the command line.
+SPHINXOPTS    =
+SPHINXBUILD   = sphinx-build
+PAPER         =
+BUILDDIR      = _build
+
+# User-friendly check for sphinx-build
+ifeq ($(shell which $(SPHINXBUILD) >/dev/null 2>&1; echo $$?), 1)
+$(error The '$(SPHINXBUILD)' command was not found. Make sure you have Sphinx installed, then set the SPHINXBUILD environment variable to point to the full path of the '$(SPHINXBUILD)' executable. Alternatively you can add the directory with the executable to your PATH. If you don't have Sphinx installed, grab it from http://sphinx-doc.org/)
+endif
+
+# Internal variables.
+PAPEROPT_a4     = -D latex_paper_size=a4
+PAPEROPT_letter = -D latex_paper_size=letter
+ALLSPHINXOPTS   = -d $(BUILDDIR)/doctrees $(PAPEROPT_$(PAPER)) $(SPHINXOPTS) .
+# the i18n builder cannot share the environment and doctrees with the others
+I18NSPHINXOPTS  = $(PAPEROPT_$(PAPER)) $(SPHINXOPTS) .
+
+.PHONY: help clean html dirhtml singlehtml pickle json htmlhelp qthelp devhelp epub latex latexpdf text man changes linkcheck doctest gettext
+
+help:
+	@echo "Please use \`make <target>' where <target> is one of"
+	@echo "  html       to make standalone HTML files"
+	@echo "  dirhtml    to make HTML files named index.html in directories"
+	@echo "  singlehtml to make a single large HTML file"
+	@echo "  pickle     to make pickle files"
+	@echo "  json       to make JSON files"
+	@echo "  htmlhelp   to make HTML files and a HTML help project"
+	@echo "  qthelp     to make HTML files and a qthelp project"
+	@echo "  devhelp    to make HTML files and a Devhelp project"
+	@echo "  epub       to make an epub"
+	@echo "  latex      to make LaTeX files, you can set PAPER=a4 or PAPER=letter"
+	@echo "  latexpdf   to make LaTeX files and run them through pdflatex"
+	@echo "  latexpdfja to make LaTeX files and run them through platex/dvipdfmx"
+	@echo "  text       to make text files"
+	@echo "  man        to make manual pages"
+	@echo "  texinfo    to make Texinfo files"
+	@echo "  info       to make Texinfo files and run them through makeinfo"
+	@echo "  gettext    to make PO message catalogs"
+	@echo "  changes    to make an overview of all changed/added/deprecated items"
+	@echo "  xml        to make Docutils-native XML files"
+	@echo "  pseudoxml  to make pseudoxml-XML files for display purposes"
+	@echo "  linkcheck  to check all external links for integrity"
+	@echo "  doctest    to run all doctests embedded in the documentation (if enabled)"
+
+clean:
+	rm -rf $(BUILDDIR)/*
+
+html:
+	$(SPHINXBUILD) -b html $(ALLSPHINXOPTS) $(BUILDDIR)/html
+	@echo
+	@echo "Build finished. The HTML pages are in $(BUILDDIR)/html."
+
+dirhtml:
+	$(SPHINXBUILD) -b dirhtml $(ALLSPHINXOPTS) $(BUILDDIR)/dirhtml
+	@echo
+	@echo "Build finished. The HTML pages are in $(BUILDDIR)/dirhtml."
+
+singlehtml:
+	$(SPHINXBUILD) -b singlehtml $(ALLSPHINXOPTS) $(BUILDDIR)/singlehtml
+	@echo
+	@echo "Build finished. The HTML page is in $(BUILDDIR)/singlehtml."
+
+pickle:
+	$(SPHINXBUILD) -b pickle $(ALLSPHINXOPTS) $(BUILDDIR)/pickle
+	@echo
+	@echo "Build finished; now you can process the pickle files."
+
+json:
+	$(SPHINXBUILD) -b json $(ALLSPHINXOPTS) $(BUILDDIR)/json
+	@echo
+	@echo "Build finished; now you can process the JSON files."
+
+htmlhelp:
+	$(SPHINXBUILD) -b htmlhelp $(ALLSPHINXOPTS) $(BUILDDIR)/htmlhelp
+	@echo
+	@echo "Build finished; now you can run HTML Help Workshop with the" \
+	      ".hhp project file in $(BUILDDIR)/htmlhelp."
+
+qthelp:
+	$(SPHINXBUILD) -b qthelp $(ALLSPHINXOPTS) $(BUILDDIR)/qthelp
+	@echo
+	@echo "Build finished; now you can run "qcollectiongenerator" with the" \
+	      ".qhcp project file in $(BUILDDIR)/qthelp, like this:"
+	@echo "# qcollectiongenerator $(BUILDDIR)/qthelp/PyMeasure.qhcp"
+	@echo "To view the help file:"
+	@echo "# assistant -collectionFile $(BUILDDIR)/qthelp/PyMeasure.qhc"
+
+devhelp:
+	$(SPHINXBUILD) -b devhelp $(ALLSPHINXOPTS) $(BUILDDIR)/devhelp
+	@echo
+	@echo "Build finished."
+	@echo "To view the help file:"
+	@echo "# mkdir -p $$HOME/.local/share/devhelp/PyMeasure"
+	@echo "# ln -s $(BUILDDIR)/devhelp $$HOME/.local/share/devhelp/PyMeasure"
+	@echo "# devhelp"
+
+epub:
+	$(SPHINXBUILD) -b epub $(ALLSPHINXOPTS) $(BUILDDIR)/epub
+	@echo
+	@echo "Build finished. The epub file is in $(BUILDDIR)/epub."
+
+latex:
+	$(SPHINXBUILD) -b latex $(ALLSPHINXOPTS) $(BUILDDIR)/latex
+	@echo
+	@echo "Build finished; the LaTeX files are in $(BUILDDIR)/latex."
+	@echo "Run \`make' in that directory to run these through (pdf)latex" \
+	      "(use \`make latexpdf' here to do that automatically)."
+
+latexpdf:
+	$(SPHINXBUILD) -b latex $(ALLSPHINXOPTS) $(BUILDDIR)/latex
+	@echo "Running LaTeX files through pdflatex..."
+	$(MAKE) -C $(BUILDDIR)/latex all-pdf
+	@echo "pdflatex finished; the PDF files are in $(BUILDDIR)/latex."
+
+latexpdfja:
+	$(SPHINXBUILD) -b latex $(ALLSPHINXOPTS) $(BUILDDIR)/latex
+	@echo "Running LaTeX files through platex and dvipdfmx..."
+	$(MAKE) -C $(BUILDDIR)/latex all-pdf-ja
+	@echo "pdflatex finished; the PDF files are in $(BUILDDIR)/latex."
+
+text:
+	$(SPHINXBUILD) -b text $(ALLSPHINXOPTS) $(BUILDDIR)/text
+	@echo
+	@echo "Build finished. The text files are in $(BUILDDIR)/text."
+
+man:
+	$(SPHINXBUILD) -b man $(ALLSPHINXOPTS) $(BUILDDIR)/man
+	@echo
+	@echo "Build finished. The manual pages are in $(BUILDDIR)/man."
+
+texinfo:
+	$(SPHINXBUILD) -b texinfo $(ALLSPHINXOPTS) $(BUILDDIR)/texinfo
+	@echo
+	@echo "Build finished. The Texinfo files are in $(BUILDDIR)/texinfo."
+	@echo "Run \`make' in that directory to run these through makeinfo" \
+	      "(use \`make info' here to do that automatically)."
+
+info:
+	$(SPHINXBUILD) -b texinfo $(ALLSPHINXOPTS) $(BUILDDIR)/texinfo
+	@echo "Running Texinfo files through makeinfo..."
+	make -C $(BUILDDIR)/texinfo info
+	@echo "makeinfo finished; the Info files are in $(BUILDDIR)/texinfo."
+
+gettext:
+	$(SPHINXBUILD) -b gettext $(I18NSPHINXOPTS) $(BUILDDIR)/locale
+	@echo
+	@echo "Build finished. The message catalogs are in $(BUILDDIR)/locale."
+
+changes:
+	$(SPHINXBUILD) -b changes $(ALLSPHINXOPTS) $(BUILDDIR)/changes
+	@echo
+	@echo "The overview file is in $(BUILDDIR)/changes."
+
+linkcheck:
+	$(SPHINXBUILD) -b linkcheck $(ALLSPHINXOPTS) $(BUILDDIR)/linkcheck
+	@echo
+	@echo "Link check complete; look for any errors in the above output " \
+	      "or in $(BUILDDIR)/linkcheck/output.txt."
+
+doctest:
+	$(SPHINXBUILD) -b doctest $(ALLSPHINXOPTS) $(BUILDDIR)/doctest
+	@echo "Testing of doctests in the sources finished, look at the " \
+	      "results in $(BUILDDIR)/doctest/output.txt."
+
+xml:
+	$(SPHINXBUILD) -b xml $(ALLSPHINXOPTS) $(BUILDDIR)/xml
+	@echo
+	@echo "Build finished. The XML files are in $(BUILDDIR)/xml."
+
+pseudoxml:
+	$(SPHINXBUILD) -b pseudoxml $(ALLSPHINXOPTS) $(BUILDDIR)/pseudoxml
+	@echo
+	@echo "Build finished. The pseudo-XML files are in $(BUILDDIR)/pseudoxml."
diff --git a/docs/index.rst b/docs/index.rst
new file mode 100644
index 00000000..c23b467a
--- /dev/null
+++ b/docs/index.rst
@@ -0,0 +1,3 @@
+######
+PyLeco
+######
diff --git a/docs/make.bat b/docs/make.bat
new file mode 100644
index 00000000..aefe0b35
--- /dev/null
+++ b/docs/make.bat
@@ -0,0 +1,242 @@
+@ECHO OFF
+
+REM Command file for Sphinx documentation
+
+if "%SPHINXBUILD%" == "" (
+	set SPHINXBUILD=sphinx-build
+)
+set BUILDDIR=_build
+set ALLSPHINXOPTS=-d %BUILDDIR%/doctrees %SPHINXOPTS% .
+set I18NSPHINXOPTS=%SPHINXOPTS% .
+if NOT "%PAPER%" == "" (
+	set ALLSPHINXOPTS=-D latex_paper_size=%PAPER% %ALLSPHINXOPTS%
+	set I18NSPHINXOPTS=-D latex_paper_size=%PAPER% %I18NSPHINXOPTS%
+)
+
+if "%1" == "" goto help
+
+if "%1" == "help" (
+	:help
+	echo.Please use `make ^<target^>` where ^<target^> is one of
+	echo.  html       to make standalone HTML files
+	echo.  dirhtml    to make HTML files named index.html in directories
+	echo.  singlehtml to make a single large HTML file
+	echo.  pickle     to make pickle files
+	echo.  json       to make JSON files
+	echo.  htmlhelp   to make HTML files and a HTML help project
+	echo.  qthelp     to make HTML files and a qthelp project
+	echo.  devhelp    to make HTML files and a Devhelp project
+	echo.  epub       to make an epub
+	echo.  latex      to make LaTeX files, you can set PAPER=a4 or PAPER=letter
+	echo.  text       to make text files
+	echo.  man        to make manual pages
+	echo.  texinfo    to make Texinfo files
+	echo.  gettext    to make PO message catalogs
+	echo.  changes    to make an overview over all changed/added/deprecated items
+	echo.  xml        to make Docutils-native XML files
+	echo.  pseudoxml  to make pseudoxml-XML files for display purposes
+	echo.  linkcheck  to check all external links for integrity
+	echo.  doctest    to run all doctests embedded in the documentation if enabled
+	goto end
+)
+
+if "%1" == "clean" (
+	for /d %%i in (%BUILDDIR%\*) do rmdir /q /s %%i
+	del /q /s %BUILDDIR%\*
+	goto end
+)
+
+
+%SPHINXBUILD% 2> nul
+if errorlevel 9009 (
+	echo.
+	echo.The 'sphinx-build' command was not found. Make sure you have Sphinx
+	echo.installed, then set the SPHINXBUILD environment variable to point
+	echo.to the full path of the 'sphinx-build' executable. Alternatively you
+	echo.may add the Sphinx directory to PATH.
+	echo.
+	echo.If you don't have Sphinx installed, grab it from
+	echo.http://sphinx-doc.org/
+	exit /b 1
+)
+
+if "%1" == "html" (
+	%SPHINXBUILD% -b html %ALLSPHINXOPTS% %BUILDDIR%/html
+	if errorlevel 1 exit /b 1
+	echo.
+	echo.Build finished. The HTML pages are in %BUILDDIR%/html.
+	goto end
+)
+
+if "%1" == "dirhtml" (
+	%SPHINXBUILD% -b dirhtml %ALLSPHINXOPTS% %BUILDDIR%/dirhtml
+	if errorlevel 1 exit /b 1
+	echo.
+	echo.Build finished. The HTML pages are in %BUILDDIR%/dirhtml.
+	goto end
+)
+
+if "%1" == "singlehtml" (
+	%SPHINXBUILD% -b singlehtml %ALLSPHINXOPTS% %BUILDDIR%/singlehtml
+	if errorlevel 1 exit /b 1
+	echo.
+	echo.Build finished. The HTML pages are in %BUILDDIR%/singlehtml.
+	goto end
+)
+
+if "%1" == "pickle" (
+	%SPHINXBUILD% -b pickle %ALLSPHINXOPTS% %BUILDDIR%/pickle
+	if errorlevel 1 exit /b 1
+	echo.
+	echo.Build finished; now you can process the pickle files.
+	goto end
+)
+
+if "%1" == "json" (
+	%SPHINXBUILD% -b json %ALLSPHINXOPTS% %BUILDDIR%/json
+	if errorlevel 1 exit /b 1
+	echo.
+	echo.Build finished; now you can process the JSON files.
+	goto end
+)
+
+if "%1" == "htmlhelp" (
+	%SPHINXBUILD% -b htmlhelp %ALLSPHINXOPTS% %BUILDDIR%/htmlhelp
+	if errorlevel 1 exit /b 1
+	echo.
+	echo.Build finished; now you can run HTML Help Workshop with the ^
+.hhp project file in %BUILDDIR%/htmlhelp.
+	goto end
+)
+
+if "%1" == "qthelp" (
+	%SPHINXBUILD% -b qthelp %ALLSPHINXOPTS% %BUILDDIR%/qthelp
+	if errorlevel 1 exit /b 1
+	echo.
+	echo.Build finished; now you can run "qcollectiongenerator" with the ^
+.qhcp project file in %BUILDDIR%/qthelp, like this:
+	echo.^> qcollectiongenerator %BUILDDIR%\qthelp\PyMeasure.qhcp
+	echo.To view the help file:
+	echo.^> assistant -collectionFile %BUILDDIR%\qthelp\PyMeasure.ghc
+	goto end
+)
+
+if "%1" == "devhelp" (
+	%SPHINXBUILD% -b devhelp %ALLSPHINXOPTS% %BUILDDIR%/devhelp
+	if errorlevel 1 exit /b 1
+	echo.
+	echo.Build finished.
+	goto end
+)
+
+if "%1" == "epub" (
+	%SPHINXBUILD% -b epub %ALLSPHINXOPTS% %BUILDDIR%/epub
+	if errorlevel 1 exit /b 1
+	echo.
+	echo.Build finished. The epub file is in %BUILDDIR%/epub.
+	goto end
+)
+
+if "%1" == "latex" (
+	%SPHINXBUILD% -b latex %ALLSPHINXOPTS% %BUILDDIR%/latex
+	if errorlevel 1 exit /b 1
+	echo.
+	echo.Build finished; the LaTeX files are in %BUILDDIR%/latex.
+	goto end
+)
+
+if "%1" == "latexpdf" (
+	%SPHINXBUILD% -b latex %ALLSPHINXOPTS% %BUILDDIR%/latex
+	cd %BUILDDIR%/latex
+	make all-pdf
+	cd %BUILDDIR%/..
+	echo.
+	echo.Build finished; the PDF files are in %BUILDDIR%/latex.
+	goto end
+)
+
+if "%1" == "latexpdfja" (
+	%SPHINXBUILD% -b latex %ALLSPHINXOPTS% %BUILDDIR%/latex
+	cd %BUILDDIR%/latex
+	make all-pdf-ja
+	cd %BUILDDIR%/..
+	echo.
+	echo.Build finished; the PDF files are in %BUILDDIR%/latex.
+	goto end
+)
+
+if "%1" == "text" (
+	%SPHINXBUILD% -b text %ALLSPHINXOPTS% %BUILDDIR%/text
+	if errorlevel 1 exit /b 1
+	echo.
+	echo.Build finished. The text files are in %BUILDDIR%/text.
+	goto end
+)
+
+if "%1" == "man" (
+	%SPHINXBUILD% -b man %ALLSPHINXOPTS% %BUILDDIR%/man
+	if errorlevel 1 exit /b 1
+	echo.
+	echo.Build finished. The manual pages are in %BUILDDIR%/man.
+	goto end
+)
+
+if "%1" == "texinfo" (
+	%SPHINXBUILD% -b texinfo %ALLSPHINXOPTS% %BUILDDIR%/texinfo
+	if errorlevel 1 exit /b 1
+	echo.
+	echo.Build finished. The Texinfo files are in %BUILDDIR%/texinfo.
+	goto end
+)
+
+if "%1" == "gettext" (
+	%SPHINXBUILD% -b gettext %I18NSPHINXOPTS% %BUILDDIR%/locale
+	if errorlevel 1 exit /b 1
+	echo.
+	echo.Build finished. The message catalogs are in %BUILDDIR%/locale.
+	goto end
+)
+
+if "%1" == "changes" (
+	%SPHINXBUILD% -b changes %ALLSPHINXOPTS% %BUILDDIR%/changes
+	if errorlevel 1 exit /b 1
+	echo.
+	echo.The overview file is in %BUILDDIR%/changes.
+	goto end
+)
+
+if "%1" == "linkcheck" (
+	%SPHINXBUILD% -b linkcheck %ALLSPHINXOPTS% %BUILDDIR%/linkcheck
+	if errorlevel 1 exit /b 1
+	echo.
+	echo.Link check complete; look for any errors in the above output ^
+or in %BUILDDIR%/linkcheck/output.txt.
+	goto end
+)
+
+if "%1" == "doctest" (
+	%SPHINXBUILD% -b doctest %ALLSPHINXOPTS% %BUILDDIR%/doctest
+	if errorlevel 1 exit /b 1
+	echo.
+	echo.Testing of doctests in the sources finished, look at the ^
+results in %BUILDDIR%/doctest/output.txt.
+	goto end
+)
+
+if "%1" == "xml" (
+	%SPHINXBUILD% -b xml %ALLSPHINXOPTS% %BUILDDIR%/xml
+	if errorlevel 1 exit /b 1
+	echo.
+	echo.Build finished. The XML files are in %BUILDDIR%/xml.
+	goto end
+)
+
+if "%1" == "pseudoxml" (
+	%SPHINXBUILD% -b pseudoxml %ALLSPHINXOPTS% %BUILDDIR%/pseudoxml
+	if errorlevel 1 exit /b 1
+	echo.
+	echo.Build finished. The pseudo-XML files are in %BUILDDIR%/pseudoxml.
+	goto end
+)
+
+:end
diff --git a/environment.yml b/environment.yml
index 5f5bb44e..551e9401 100644
--- a/environment.yml
+++ b/environment.yml
@@ -2,12 +2,16 @@ name: pyleco
 channels:
   - conda-forge
 dependencies:
-  - pyzmq=25.0.0
+  - pyzmq=25.1.0
+  - pip  # don't pin, to gain newest conda compatibility fixes
+  - pip:
+    - jsonrpc2-pyclient==2.2.12
+    - openrpc==6.3.17
+    - uuid7==0.1.0
 # Development dependencies below
   - pytest=7.2.0
+  - pytest-runner=6.0.0
+  - flake8=6.0.0
   - setuptools_scm # don't pin, to get newest features
-  - sphinx=6.1.3
-  - sphinx_rtd_theme=1.0.0
-  # - pip  # don't pin, to gain newest conda compatibility fixes
-  # - pip:
-  #   - xxx
+  # - sphinx=6.1.3
+  # - sphinx_rtd_theme=1.0.0
diff --git a/pyleco/__init__.py b/pyleco/__init__.py
index e69de29b..1c806830 100644
--- a/pyleco/__init__.py
+++ b/pyleco/__init__.py
@@ -0,0 +1,51 @@
+#
+# This file is part of the PyLECO package.
+#
+# Copyright (c) 2023-2023 PyLECO Developers
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+# THE SOFTWARE.
+#
+
+import warnings
+
+# Maximally flexible approach to obtain version numbers, based on this approach:
+# https://github.com/pypa/setuptools_scm/issues/143#issuecomment-672878863
+# Sadly, this does not work with editable installs, which bake in version info on installation.
+# see also https://github.com/pyusb/pyusb/pull/307#issuecomment-650797688
+try:
+    # If a user has setuptools_scm installed, assume they want the most up to date version string.
+    # Alternatively, we could use a dummy dev module that is never packaged whose presence signals
+    # that we are in an editable install/repo, see https://github.com/pycalphad/pycalphad/pull/341
+    import setuptools_scm
+    __version__ = setuptools_scm.get_version(root='..', relative_to=__file__)
+    del setuptools_scm
+except (ImportError, LookupError):
+    # Setuptools_scm was not found, or it could not find a version, so use installation metadata.
+    from importlib.metadata import version, PackageNotFoundError
+    try:
+        __version__ = version("pyleco")
+        # Alternatively, if the current approach is too slow, we could add
+        # 'write_to = "pyleco/_version.py"' in pyproject.toml and use the generated file here:
+        # from ._version import version as __version__
+    except PackageNotFoundError:
+        warnings.warn('Could not find pyleco version, it does not seem to be installed. '
+                      'Either install it (editable or full) or install setuptools_scm')
+        __version__ = '0.0.0'
+    finally:
+        del version, PackageNotFoundError
diff --git a/pyproject.toml b/pyproject.toml
index 405e9fc1..0576cb55 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -16,10 +16,10 @@ classifiers = [
 
 requires-python = ">=3.10"
 dependencies = [
-  "pyzmq",
-  "openrpc",
-  "jsonrpc2-pyclient",
-  "uuid7",
+  "pyzmq" >= 22.3.0,
+  "openrpc" >= 6.3.17,
+  "jsonrpc2-pyclient" >= 2.2.12,
+  "uuid7" >= 0.1.0,
 ]
 
 [project.optional-dependencies]
@@ -39,3 +39,9 @@ build-backend = "setuptools.build_meta"
 
 [tool.setuptools_scm]
 # write_to = "pyleco/_version.py"
+
+[tool.black]
+line-length = 100
+
+[tool.isort]
+profile = "black"
diff --git a/setup.cfg b/setup.cfg
new file mode 100644
index 00000000..5a05141a
--- /dev/null
+++ b/setup.cfg
@@ -0,0 +1,6 @@
+[flake8]
+exclude = .git,__pycache__,docs/conf.py,build,dist
+max-line-length = 100
+max-complexity = 15
+per-file-ignores =
+    __init__.py:F401