diff --git a/scheme-bookpub.tar.xz b/scheme-bookpub.tar.xz
new file mode 100644
index 0000000..4ddf6ca
--- /dev/null
+++ b/scheme-bookpub.tar.xz
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
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+size 620