diff --git a/.gitignore b/.gitignore
index 7e106a67..734f33fd 100644
--- a/.gitignore
+++ b/.gitignore
@@ -2,6 +2,7 @@
 orchestrator-core
 orchestrator-ui-library
 lso
+pydantic-forms
 
 site/
 .idea
diff --git a/docs/css/style.css b/docs/css/style.css
index e8654c66..49f63f9a 100644
--- a/docs/css/style.css
+++ b/docs/css/style.css
@@ -29,3 +29,39 @@ img[alt='pypi-downloads'], img[alt='npm-downloads'] {
 [data-md-color-scheme="slate"] img[alt='Internet2'] {
     filter: drop-shadow(1px 1px 5px white);
 }
+
+/*
+ * Label search results with the project they belong to.
+ *
+ * Page titles collide across sub-projects -- "Introduction" alone occurs five times -- so a bare
+ * result title gives no clue which project it came from. Material renders the page-level result of
+ * each group as an h1 (nested section matches are h2), with an absolute href, so matching on the
+ * href prefix labels the group heading only and leaves the sections under it untouched.
+ *
+ * Done in CSS rather than by prefixing titles in the search index, because the index title carries a
+ * boost of 1e3: putting "Orchestrator Core" in ~60 page titles would make every one of them rank
+ * highly for "orchestrator" or "core", degrading the relevance this is meant to improve.
+ *
+ * Purely additive: if Material changes its result markup the label silently disappears, and nothing
+ * else breaks. Keep in sync with the sub-projects in the Projects nav of mkdocs.yml.
+ */
+.md-search-result__article h1::before {
+    color: var(--md-default-fg-color--light);
+    font-weight: 400;
+}
+
+.md-search-result__link[href*="/orchestrator-core/"] h1::before {
+    content: "Orchestrator Core › ";
+}
+
+.md-search-result__link[href*="/orchestrator-ui-library/"] h1::before {
+    content: "Orchestrator UI Library › ";
+}
+
+.md-search-result__link[href*="/lightweight-service-orchestrator/"] h1::before {
+    content: "Lightweight Service Orchestrator › ";
+}
+
+.md-search-result__link[href*="/pydantic-forms/"] h1::before {
+    content: "Pydantic Forms › ";
+}
diff --git a/mkdocs.yml b/mkdocs.yml
index 1eeec583..bbaec0b9 100644
--- a/mkdocs.yml
+++ b/mkdocs.yml
@@ -41,6 +41,8 @@ nav:
       # INCLUDED_REPO: https://github.com/workfloworchestrator/orchestrator-ui-library.git
       - Lightweight Service Orchestrator: "!include ./lso/mkdocs.yml"
       # INCLUDED_REPO: https://github.com/workfloworchestrator/lso.git
+      - Pydantic Forms: "!include ./pydantic-forms/mkdocs.yml"
+      # INCLUDED_REPO: https://github.com/workfloworchestrator/pydantic-forms.git
 
 theme:
   name: material
@@ -105,6 +107,9 @@ plugins:
             - https://docs.python.org/3/objects.inv
           paths:
             - lso/lso
+            # Read pydantic-forms from the checkout rather than the installed copy, so that
+            # attribute docstrings cannot go stale between edits and a re-install.
+            - pydantic-forms
           options:
             show_source: true
             show_root_heading: true