diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 0000000..9c2cefe
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,6 @@
+[submodule "molscribe"]
+	path = molscribe
+	url = https://github.com/thomas0809/MolScribe
+[submodule "vary"]
+	path = vary
+	url = https://github.com/Ucas-HaoranWei/Vary
diff --git a/molscribe b/molscribe
new file mode 160000
index 0000000..97acee5
--- /dev/null
+++ b/molscribe
@@ -0,0 +1 @@
+Subproject commit 97acee57d10bd719f4dc1cfd30d09f142b7dc65f
diff --git a/vary b/vary
new file mode 160000
index 0000000..9727432
--- /dev/null
+++ b/vary
@@ -0,0 +1 @@
+Subproject commit 9727432512255fae766c330de2a306b34ab5fec0