diff --git a/.cspell.json b/.cspell.json
index 15846a25..40413434 100644
--- a/.cspell.json
+++ b/.cspell.json
@@ -19,8 +19,9 @@
     "*particle*.*ml",
     ".constraints/*.txt",
     ".editorconfig",
+    ".envrc",
+    ".gitattributes",
     ".gitignore",
-    ".gitpod.*",
     ".pre-commit-config.yaml",
     ".prettierignore",
     ".readthedocs.yml",
diff --git a/.envrc b/.envrc
index cce3aa58..e1d415a5 100644
--- a/.envrc
+++ b/.envrc
@@ -1 +1,10 @@
-layout anaconda
+if [ -e .venv ]; then
+  source .venv/bin/activate
+elif [ -e venv ]; then
+  source venv/bin/activate
+elif [ -e .pixi ]; then
+  watch_file pixi.lock
+  eval "$(pixi shell-hook)"
+else
+  layout anaconda
+fi
diff --git a/.gitattributes b/.gitattributes
new file mode 100644
index 00000000..18f6c7e9
--- /dev/null
+++ b/.gitattributes
@@ -0,0 +1 @@
+pixi.lock linguist-language=YAML linguist-generated=true
diff --git a/.gitignore b/.gitignore
index 86b251c6..2b89bbba 100644
--- a/.gitignore
+++ b/.gitignore
@@ -31,6 +31,7 @@ typings/
 
 # Virtual environments
 *venv/
+.pixi/
 .tox/
 pyvenv*/
 
diff --git a/.gitpod.yml b/.gitpod.yml
deleted file mode 100644
index 2e3ec8ef..00000000
--- a/.gitpod.yml
+++ /dev/null
@@ -1,36 +0,0 @@
-tasks:
-  - init: pyenv local 3.9
-  - init: pip install -c .constraints/py3.9.txt -e .[dev]
-
-github:
-  prebuilds:
-    master: true
-    branches: false
-    pullRequests: true
-    pullRequestsFromForks: true
-    addComment: false
-    addBadge: false
-    addLabel: false
-
-vscode:
-  extensions:
-    - charliermarsh.ruff
-    - eamodio.gitlens
-    - editorconfig.editorconfig
-    - esbenp.prettier-vscode
-    - executablebookproject.myst-highlight
-    - github.vscode-github-actions
-    - github.vscode-pull-request-github
-    - ms-python.python
-    - ms-python.mypy-type-checker
-    - ms-python.vscode-pylance
-    - ms-toolsai.vscode-jupyter-cell-tags
-    - ms-vscode.live-server
-    - ms-vsliveshare.vsliveshare
-    - oijaz.unicode-latex
-    - redhat.vscode-yaml
-    - soulcode.vscode-unwanted-extensions
-    - stkb.rewrap
-    - streetsidesoftware.code-spell-checker
-    - tamasfe.even-better-toml
-    - yzhang.markdown-all-in-one
diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index 77b78933..92afb790 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -3,9 +3,7 @@ ci:
   autoupdate_schedule: quarterly # already done by requirements-cron.yml
   skip:
     - mypy
-    - prettier
     - pyright
-    - taplo
 
 repos:
   - repo: meta
@@ -13,15 +11,29 @@ repos:
       - id: check-hooks-apply
       - id: check-useless-excludes
 
+  - repo: https://github.com/ComPWA/policy
+    rev: 0.4.0
+    hooks:
+      - id: check-dev-files
+        args:
+          - --doc-apt-packages=graphviz
+          - --github-pages
+          - --no-prettierrc
+          - --pin-requirements=bimonthly
+          - --repo-name=ampform-dpd
+          - --repo-title=AmpForm-DPD
+      - id: colab-toc-visible
+      - id: remove-empty-tags
+
   - repo: https://github.com/kynan/nbstripout
     rev: 0.7.1
     hooks:
       - id: nbstripout
         args:
+          - --drop-empty-cells
           - --extra-keys
           - |
             cell.attachments
-            cell.id
             cell.metadata.code_folding
             cell.metadata.editable
             cell.metadata.id
@@ -41,20 +53,6 @@ repos:
             metadata.varInspector
             metadata.vscode
 
-  - repo: https://github.com/ComPWA/policy
-    rev: 0.4.0
-    hooks:
-      - id: check-dev-files
-        args:
-          - --doc-apt-packages=graphviz
-          - --github-pages
-          - --no-prettierrc
-          - --pin-requirements=bimonthly
-          - --repo-name=ampform-dpd
-          - --repo-title=AmpForm-DPD
-      - id: colab-toc-visible
-      - id: remove-empty-tags
-
   - repo: https://github.com/astral-sh/ruff-pre-commit
     rev: v0.6.4
     hooks:
diff --git a/.vscode/extensions.json b/.vscode/extensions.json
index d528453c..dd8bb212 100644
--- a/.vscode/extensions.json
+++ b/.vscode/extensions.json
@@ -7,8 +7,9 @@
     "executablebookproject.myst-highlight",
     "github.vscode-github-actions",
     "github.vscode-pull-request-github",
-    "ms-python.python",
+    "mhutchie.git-graph",
     "ms-python.mypy-type-checker",
+    "ms-python.python",
     "ms-python.vscode-pylance",
     "ms-toolsai.vscode-jupyter-cell-tags",
     "ms-vscode.live-server",
diff --git a/.vscode/settings.json b/.vscode/settings.json
index 54d6a8cc..8d5bc234 100644
--- a/.vscode/settings.json
+++ b/.vscode/settings.json
@@ -34,7 +34,8 @@
   "diffEditor.experimental.showMoves": true,
   "editor.formatOnSave": true,
   "files.associations": {
-    "**/.constraints/py*.txt": "pip-requirements"
+    "**/.constraints/py*.txt": "pip-requirements",
+    "**/pixi.lock": "yaml"
   },
   "files.eol": "\n",
   "github-actions.workflows.pinned.workflows": [".github/workflows/ci.yml"],
diff --git a/README.md b/README.md
index 823e1ec2..b5acac33 100644
--- a/README.md
+++ b/README.md
@@ -9,7 +9,6 @@
 [![pre-commit.ci status](https://results.pre-commit.ci/badge/github/ComPWA/ampform-dpd/main.svg)](https://results.pre-commit.ci/latest/github/ComPWA/ampform-dpd/main)
 [![Test coverage](https://codecov.io/gh/ComPWA/ampform-dpd/branch/main/graph/badge.svg)](https://codecov.io/gh/ComPWA/ampform-dpd)
 
-[![GitPod](https://img.shields.io/badge/gitpod-open-blue?logo=gitpod)](https://gitpod.io/#https://github.com/ComPWA/ampform-dpd)
 [![code style: prettier](https://img.shields.io/badge/code_style-prettier-ff69b4.svg?style=flat-square)](https://github.com/prettier/prettier)
 [![Spelling checked](https://img.shields.io/badge/cspell-checked-brightgreen.svg)](https://github.com/streetsidesoftware/cspell/tree/master/packages/cspell)
 [![Ruff](https://img.shields.io/endpoint?url=https://raw.githubusercontent.com/charliermarsh/ruff/main/assets/badge/v2.json)](https://github.com/astral-sh/ruff)
diff --git a/docs/index.md b/docs/index.md
index 17defe25..9f4be504 100644
--- a/docs/index.md
+++ b/docs/index.md
@@ -139,6 +139,7 @@ Notice the general structure:
 If $k=1$, we have $\hat\theta_{k(1)}=0$, so the Wigner $d$ function for the production isobar reduces to a Kronecker delta, $d^J_{\nu,\tau-\lambda'_k}\!\left(\hat\theta_{k(1)}\right) = \delta_{\nu,\tau-\lambda'_k}$.
 
 [^1]: Alternatively, one can sum over all resonances themselves, so that one has a dynamic function $X_\mathcal{R}(\sigma_k)$ for each resonance $\mathcal{R}$ in subsystem $k$.
+
 [^2]: See also {cite}`JPAC:2021rxu`, Section 2.1.
 
 Equation {eq}`aligned-amplitude` is written in terms of _helicity_ couplings, but can be rewritten in terms of _$LS$ couplings_, using
diff --git a/environment.yml b/environment.yml
index ec90afd9..d262623b 100644
--- a/environment.yml
+++ b/environment.yml
@@ -8,5 +8,4 @@ dependencies:
   - pip:
       - -c .constraints/py3.9.txt -e .[dev]
 variables:
-  PRETTIER_LEGACY_CLI: "1"
   PYTHONHASHSEED: 0
diff --git a/pyproject.toml b/pyproject.toml
index 08cd339c..bda60e72 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -135,6 +135,8 @@ namespaces = false
 where = ["src"]
 
 [tool.setuptools_scm]
+local_scheme = "no-local-version"
+version_scheme = "post-release"
 write_to = "src/ampform_dpd/version.py"
 
 [tool.mypy]
@@ -156,6 +158,103 @@ disallow_incomplete_defs = false
 disallow_untyped_defs = false
 module = ["tests.*"]
 
+[tool.pixi.project]
+channels = ["conda-forge"]
+platforms = ["linux-64"]
+
+[tool.pixi.activation.env]
+PRETTIER_LEGACY_CLI = "1"
+PYTHONHASHSEED = "0"
+
+[tool.pixi.dependencies]
+graphviz = "*"
+python = "3.9.*"
+
+[tool.pixi.environments]
+default = {features = [
+    "dev",
+    "doc",
+    "jax",
+    "jupyter",
+    "numba",
+    "sty",
+    "tensorflow",
+    "test",
+    "tf",
+    "types",
+]}
+
+[tool.pixi.feature.dev.tasks.ci]
+depends_on = ["cov", "docnb", "linkcheck", "sty"]
+
+[tool.pixi.feature.dev.tasks.cov]
+cmd = """
+pytest src tests \
+    --cov-fail-under=50 \
+    --cov-report=html \
+    --cov-report=xml \
+    --cov=ampform_dpd
+"""
+
+[tool.pixi.feature.dev.tasks.doc]
+cmd = "sphinx-build -nW --keep-going -b html docs/ docs/_build/html"
+env = {FORCE_COLOR = "yes"}
+
+[tool.pixi.feature.dev.tasks.doclive]
+cmd = """
+sphinx-autobuild \
+    --open-browser \
+    --re-ignore '.*/.ipynb_checkpoints/.*' \
+    --re-ignore '.*/__pycache__/.*' \
+    --re-ignore '.*\\.pkl' \
+    --re-ignore '.*\\.pdf' \
+    --re-ignore '.*\\.png' \
+    --re-ignore '.*\\.svg' \
+    --re-ignore '.*\\.tmp' \
+    --re-ignore 'docs/_build/.*' \
+    --re-ignore 'docs/_images/.*' \
+    --re-ignore 'docs/api/.*' \
+    --re-ignore 'docs/export/.*' \
+    --watch docs \
+    --watch src \
+    docs/ docs/_build/html
+"""
+env = {FORCE_COLOR = "yes"}
+
+[tool.pixi.feature.dev.tasks.docnb]
+cmd = "pixi run doc"
+env = {EXECUTE_NB = "yes", FORCE_COLOR = "yes"}
+
+[tool.pixi.feature.dev.tasks.docnb-force]
+cmd = "pixi run doc"
+env = {FORCE_COLOR = "yes", FORCE_EXECUTE_NB = "yes"}
+
+[tool.pixi.feature.dev.tasks.docnblive]
+cmd = "pixi run doclive"
+env = {EXECUTE_NB = "yes", FORCE_COLOR = "yes"}
+
+[tool.pixi.feature.dev.tasks.linkcheck]
+cmd = """
+sphinx-build \
+    -T \
+    -b linkcheck \
+    docs/ docs/_build/linkcheck
+"""
+env = {FORCE_COLOR = "yes"}
+
+[tool.pixi.feature.dev.tasks.nb]
+cmd = "pytest --nbmake --nbmake-timeout=3600 docs"
+
+[tool.pixi.feature.dev.tasks.sty]
+cmd = "pre-commit run  -a"
+env = {SKIP = "pyright"}
+
+[tool.pixi.feature.dev.tasks.tests]
+cmd = "pytest"
+
+[tool.pixi.pypi-dependencies]
+ampform-dpd = {path = ".", editable = true}
+
 [tool.pyright]
 reportArgumentType = false
 reportAssignmentType = false
@@ -221,7 +320,6 @@ src = [
     "src",
     "tests",
 ]
-target-version = "py38"
 
 [tool.ruff.format]
 docstring-code-format = true
@@ -361,6 +459,5 @@ sort_first = [
     "tool.setuptools",
     "tool.setuptools_scm",
 ]
-sort_table_keys = true
 spaces_indent_inline_array = 4
 trailing_comma_inline_array = true