diff --git a/.prettierignore b/.prettierignore
new file mode 100644
index 0000000..fa65608
--- /dev/null
+++ b/.prettierignore
@@ -0,0 +1 @@
+*.ipynb
diff --git a/docs/conf.py b/docs/conf.py
index 92adcad..405d5a4 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -85,9 +85,10 @@ def get_execution_mode() -> str:
     "path_to_docs": "docs",
     "repository_branch": "main",
     "repository_url": "https://github.com/ComPWA/strong2020-salamanca",
+    "show_toc_level": 2,
     "use_issues_button": True,
 }
-html_title = "Solutions to STRON2020 HaSP School"
+html_title = "Solutions to STRONG2020 HaSP School"
 linkcheck_anchors = False
 myst_enable_extensions = [
     "amsmath",
diff --git a/environment.yml b/environment.yml
index c6c7c3e..a294d2d 100644
--- a/environment.yml
+++ b/environment.yml
@@ -3,4 +3,6 @@ dependencies:
   - python==3.10.*
   - pip
   - pip:
-      - -e .[dev]
+      - |
+        -c .constraints/py3.10.txt
+        -e .[dev]