diff --git a/index.html b/index.html
index ec7816c..08f13ac 100644
--- a/index.html
+++ b/index.html
@@ -5,7 +5,7 @@
A Plot of Plants
-
+
diff --git a/src/main.js b/src/main.js
index 74b6aa3..7ecd99d 100644
--- a/src/main.js
+++ b/src/main.js
@@ -1,5 +1,5 @@
import { yardGeoJSON } from "./data/yard.js";
-import { CheckboxTree } from "./lib/checkbox-tree/checkbox-tree.js";
+import { CheckboxTree } from "../vendor/checkbox-tree/checkbox-tree.js";
import { resolveFeatureLinks, resolveFeatureStyle } from "./lib/feature-types.js";
const TILE_MAX_NATIVE_ZOOM = 19;
diff --git a/vendor/checkbox-tree/README.md b/vendor/checkbox-tree/README.md
new file mode 100644
index 0000000..1b8b58f
--- /dev/null
+++ b/vendor/checkbox-tree/README.md
@@ -0,0 +1,5 @@
+# Checkbox Tree runtime snapshot
+
+Vendored from `@aaronaxvig/checkbox-tree` version `0.1.0` while
+`git.axvig.com` is unavailable. Do not edit these runtime files directly; update
+the canonical `checkbox-tree` repository and refresh this snapshot.
diff --git a/src/lib/checkbox-tree/checkbox-tree.css b/vendor/checkbox-tree/checkbox-tree.css
similarity index 100%
rename from src/lib/checkbox-tree/checkbox-tree.css
rename to vendor/checkbox-tree/checkbox-tree.css
diff --git a/src/lib/checkbox-tree/checkbox-tree.js b/vendor/checkbox-tree/checkbox-tree.js
similarity index 100%
rename from src/lib/checkbox-tree/checkbox-tree.js
rename to vendor/checkbox-tree/checkbox-tree.js