diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 0000000..f0c11c1
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,3 @@
+[submodule "hottislib"]
+	path = hottislib
+	url = git@bitbucket.org:wollud1969/hottislib.git
diff --git a/hottislib b/hottislib
new file mode 160000
index 0000000..bba75fe
--- /dev/null
+++ b/hottislib
@@ -0,0 +1 @@
+Subproject commit bba75fe8e7dd424590091481284843e85c6a1199