diff --git a/src/ext/jscad.js b/src/ext/jscad.js
new file mode 120000
index 00000000..9046d37e
--- /dev/null
+++ b/src/ext/jscad.js
@@ -0,0 +1 @@
+../../node_modules/@jscad/modeling/dist/jscad-modeling.min.js
\ No newline at end of file
diff --git a/src/kiri-ico/spin.svg b/src/kiri-ico/spin.svg
new file mode 100644
index 00000000..d8dbd086
--- /dev/null
+++ b/src/kiri-ico/spin.svg
@@ -0,0 +1,7 @@
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