diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..13d8eda
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,3 @@
+build
+public
+cache
diff --git a/notes b/notes
new file mode 100644
index 0000000..0c76283
--- /dev/null
+++ b/notes
@@ -0,0 +1,2 @@
+submit out of module tree symlinks break antora
+how is xref implemented? is it an asciidoctor extension?