diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 0000000..b21823a
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,6 @@
+[submodule "slvs"]
+	path = slvs
+	url = git@github.com:realthunder/solvespace.git
+[submodule "py_slvs"]
+	path = py_slvs
+	url = git@github.com:realthunder/py_slvs.git
diff --git a/py_slvs b/py_slvs
new file mode 160000
index 0000000..fc1bb41
--- /dev/null
+++ b/py_slvs
@@ -0,0 +1 @@
+Subproject commit fc1bb412a4ce86f2db9b91bc7eeb116cef8ef194
diff --git a/slvs b/slvs
new file mode 160000
index 0000000..1198d83
--- /dev/null
+++ b/slvs
@@ -0,0 +1 @@
+Subproject commit 1198d83298573e5af36360e285da20e7f43ff784