diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 0000000..75e149f
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,9 @@
+[submodule "lang-evolve-cli"]
+	path = lang-evolve-cli
+	url = ./lang-evolve-cli/
+[submodule "lang-evolve-core"]
+	path = lang-evolve-core
+	url = ./lang-evolve-core/
+[submodule "lang-evolve-gui"]
+	path = lang-evolve-gui
+	url = ./lang-evolve-gui/
diff --git a/lang-evolve-cli b/lang-evolve-cli
new file mode 160000
index 0000000..2dec911
--- /dev/null
+++ b/lang-evolve-cli
@@ -0,0 +1 @@
+Subproject commit 2dec911b1edaef170e3d3cf4c8b273fa515f86d2
diff --git a/lang-evolve-core b/lang-evolve-core
new file mode 160000
index 0000000..47100b3
--- /dev/null
+++ b/lang-evolve-core
@@ -0,0 +1 @@
+Subproject commit 47100b3476550f83ce14934a941a8869b658d785
diff --git a/lang-evolve-gui b/lang-evolve-gui
new file mode 160000
index 0000000..25cb5b7
--- /dev/null
+++ b/lang-evolve-gui
@@ -0,0 +1 @@
+Subproject commit 25cb5b70846cd6c41b1e2f430c972b253ae72c37